St. Louis County Real Property Records: Search Owner, Locator Number, Taxes, Deeds & GIS Maps
A St. Louis County real property records search is easiest when you know which county system answers your question. Use the Assessor search for owner display, address, locator number, assessed value and parcel details; use the Collector of Revenue for real estate tax bills and receipts; use the Recorder of Deeds for deeds, liens and recorded documents; and use GIS when you need map context before calling an office.
Where to Search St. Louis County Real Property Records
Do Not Confuse Assessor, Collector, Recorder and GIS Records
The same property can appear in several county systems. Each system answers a different question, so use the table before opening a portal.
| Your Question | Correct Source | What It Shows | What It Does Not Prove |
|---|---|---|---|
| Who is listed on the property record? | Assessor Real Estate Search | Owner display, locator number, address, assessment, property class, tax district clues. | It is not a full title report or lien search. |
| What is the tax bill or receipt status? | Collector of Revenue | Real estate tax amount, payment status, bill, receipt and due status. | It does not update assessed value or create ownership proof. |
| Where is the deed or lien? | Recorder of Deeds | Recorded deeds, mortgages, liens, releases, plats, document references and copies. | It does not calculate current taxes or decide market value. |
| Where is the parcel located? | GIS Property Lookup | Map position, aerial context, parcel layer and nearby-property context. | It is not a survey, legal boundary ruling or title opinion. |
How to Search St. Louis County Real Property by Owner, Address, Locator Number or Subdivision
The Assessor route is the fastest way to identify a St. Louis County parcel before tax or deed research. Use it for owner display, address confirmation, locator number lookup, assessed value, classification and tax district clues.
Locator Number
Use the locator number when you already have a tax bill, assessment notice, deed clue or prior search result.
Owner Name
Search last name, business name, trust name or LLC name. Try spelling and punctuation variations.
Property Address
Start with street number and main street name. Remove apartment/unit labels and extra suffixes if needed.
Subdivision
Use subdivision search when the address is unclear or a property is part of a platted subdivision.
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Open the real estate search pageUse this before calling or paying.
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Open the St. Louis County Assessor real estate information search. Choose the search method that matches what you already have: locator number, owner, address or subdivision. Action link: open St. Louis County Real Estate Search.
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Confirm you are in the county, not the citySt. Louis City and St. Louis County are separate record systems.
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If the property is in the City of St. Louis, use city assessor/collector/recorder tools instead. If it is in Clayton, Florissant, Chesterfield, Ballwin, Kirkwood, Creve Coeur, Maryland Heights, Hazelwood, Lemay, Oakville or another St. Louis County municipality, continue with county tools.
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Save the fields that matterThese fields unlock the rest of the research.
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Copy the locator number, owner display, site address, mailing address if shown, municipality, tax district, assessed value, classification and land/improvement clues. Use the locator number for tax and GIS checks.
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Contact the Assessor with the locator numberAvoid vague calls like “a house in Florissant.”
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Assessor details: 41 South Central Avenue, 3rd Floor, Clayton, MO 63105. Phone: 314-615-2555. Email: Assessor@stlouiscountymo.gov. Use this office for valuation, classification, ownership display, assessment notices and record correction questions.
How to Check St. Louis County Real Estate Tax Bills, Payments and Receipts
Use the Collector of Revenue when your question is about bill amount, paid status, receipt, escrow payment, delinquency, tax sale risk or a payment confirmation. The Collector collects taxes; the Assessor determines value.
Locator Number
Best field for matching the tax account to the exact property.
Year-end deadline
Missouri county property taxes are generally due by December 31; always verify the current bill year.
Verify anyway
Even if a lender pays, check the county tax record before the deadline.
Penalty / interest
Late bills can add statutory charges and move toward collection action.
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Find the locator number firstIt reduces wrong-property payments.
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If you do not have the locator number, search the Assessor real estate system by owner or address first. Match owner, address and municipality before opening the tax payment route.
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Open the official tax portalUse county-linked pages before entering payment details.
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Use the Collector of Revenue property tax payment/search route to check the current bill, prior payment, receipt or balance. Action link: open St. Louis County tax payment/search portal.
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Review fees before submitting online paymentConvenience fees can vary by payment type.
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Before paying, review the final checkout screen for the exact fee. Bank/eCheck, debit card and credit card options may have different convenience fees. Save the confirmation number and receipt after payment posts.
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If paying by mail, protect the deadlineDo not wait until the final day.
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Use the bill stub if available. If you do not have the stub, write the locator number and property address clearly on the payment. Keep proof of mailing and verify that the county shows the bill paid after processing.
How to Search St. Louis County Deeds, Liens, Mortgages, Releases and Plats
Use the Recorder when you need recorded legal documents. This is the route for deeds, mortgages, deeds of trust, liens, releases, subdivision plats, easement documents and certified copies.
Deed History
Search grantor and grantee names, document type, date range or legal description clues.
Lien / Release
Search forward after a lien or deed of trust for release, satisfaction or cancellation.
Subdivision Plat
Helpful for platted lots, easements, common ground and subdivision trustee questions.
Official Copy
Order copies when a lender, title company, attorney or court needs record proof.
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Collect parcel and party clues firstDeed systems search names and documents, not only addresses.
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Use the Assessor search to collect locator number, owner spelling, municipality, subdivision and legal-description clues. Then prepare grantor/grantee names, lender names, prior owner names, date range and document type.
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Open the Recorder deed search routeUse official county page before third-party copy requests.
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Open the St. Louis County Recorder of Deeds page and choose the deed search/copy option that matches your need. Action link: open St. Louis County deed search information.
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Search more than one name variationTrusts, LLCs, spouses and old owners can hide records.
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Try last name only, full name, initials, trust name, LLC name without punctuation, lender name, prior owner and spouse name. For older properties, also use book/page, subdivision, lot number and plat references if available.
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Call the Recorder only after narrowing the documentBring document clues, not just an address.
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Recorder details: St. Louis County Recorder of Deeds, 41 South Central Avenue, Clayton, MO 63105. Phone: 314-615-7100. Email: Recorder@stlouiscountymo.gov. Public office hours are listed as 8:00am-5:00pm.
How to Use St. Louis County GIS Property Lookup
GIS helps you understand parcel location, nearby parcels, aerial context, municipality, subdivision pattern and map layers. It is especially useful in St. Louis County because many properties sit inside different municipalities, school districts and special districts.
Map Location
Confirm the property is in the county and view its location against roads and nearby parcels.
District Context
Helpful for checking tax district, municipality, school district and subdivision context.
Legal Boundary
GIS is not a survey and should not settle fence, easement or boundary disputes.
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Start with the locator number or addressGIS is easier after the Assessor search.
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Copy the locator number or confirmed property address from the Assessor record, then open the GIS Property Lookup. Action link: open St. Louis County GIS / Geospatial Data Center.
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Compare map result to tax and assessor fieldsMap context helps catch wrong-location searches.
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Check whether the map result matches the property address, municipality, subdivision, road access and nearby parcel pattern. If the GIS map and assessor record do not agree, save screenshots and contact the right office with the locator number.
How to Challenge a St. Louis County Real Property Assessment
Use the appeal route when the issue is assessed value, classification or assessment fairness. Do not wait for the tax bill if the assessment notice or reassessment value is the real problem.
| Appeal Item | What Matters | What to Prepare |
|---|---|---|
| Deadline | Missouri county Board of Equalization appeals are generally due by the second Monday in July. | Calendar the date and file before the deadline; do not wait for a tax bill. |
| Property identifier | Locator number must match the property being appealed. | Locator number, address, owner name and assessment year. |
| Evidence | Strong appeals use facts, not frustration. | Comparable sales, appraisal, photos, condition issues, wrong square footage, wrong class or neighborhood comparison. |
| Record-card errors | Incorrect property details can affect valuation. | Screenshots of assessor data plus proof of the correct facts. |
| After BOE | Further appeal may involve the Missouri State Tax Commission. | Keep BOE decision notices and follow the next deadline carefully. |
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Check the property card firstAppeals are stronger when tied to facts.
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Review square footage, finished area, basement, garage, land size, property class, condition, grade, municipality, recent reassessment and comparable properties before filing.
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File before the second Monday in JulyLate appeals can be rejected.
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Use the St. Louis County Board of Equalization appeal page or form for the current year. Action link: open St. Louis County property appeals information.
St. Louis County vs City of St. Louis: Check This Before Searching
Use St. Louis County tools if the property is in:
Clayton, Florissant, Chesterfield, Ballwin, Kirkwood, Creve Coeur, Maryland Heights, Hazelwood, Fenton, Affton, Oakville, Lemay, Bridgeton, Town and Country, Webster Groves, Maplewood, Richmond Heights, University City or unincorporated St. Louis County.
Use City of St. Louis tools if the property is inside city limits:
The City of St. Louis has its own assessor, collector and recorder systems. A city property may not appear in the county search, and county phone numbers may not help with a city-only record.
St. Louis County Offices for Real Property Record Questions
| Office / Tool | Use For | Contact / Location | Before You Contact |
|---|---|---|---|
| County Assessor | Real estate search, owner display, locator number, assessed value, classification, appeals support. | 41 South Central Avenue, 3rd Floor, Clayton, MO 63105. Phone: 314-615-2555. Email: Assessor@stlouiscountymo.gov. | Locator number, property address, owner name and exact correction/value issue. |
| Collector of Revenue | Real estate tax bills, payment, receipts, payment status, delinquent questions. | Use the official Collector of Revenue page and tax portal for current phone, mail and online payment rules. | Locator number, tax year, bill amount, confirmation number or escrow proof. |
| Recorder of Deeds | Deeds, liens, mortgages, releases, subdivision plats, official recordings and copies. | 41 South Central Avenue, Clayton, MO 63105. Phone: 314-615-7100. Email: Recorder@stlouiscountymo.gov. Hours listed: 8:00am-5:00pm. | Grantor/grantee, document type, date range, book/page, subdivision and legal-description clues. |
| GIS / Geospatial Data Center | Property lookup map, parcel location, geospatial data and map layers. | GIS Service Center: 314-615-4GIS (4447). Email: gis@stlouisco.com. | Locator number, address and screenshots of map issue. |
If Your St. Louis County Property Search Fails
| Problem | Likely Cause | Fix |
|---|---|---|
| No address result | Too much address text, suffix, apartment/unit label or city/county mix-up. | Search only street number + main street name; confirm the property is in St. Louis County, not City of St. Louis. |
| Owner name search fails | LLC, trust, spouse, prior owner, initials or punctuation variation. | Search last name only, business/trust name without punctuation and prior owner names. |
| Tax bill looks unpaid but escrow says paid | Processing delay, wrong locator, lender transfer or escrow mismatch. | Compare locator number, tax year, address and lender proof. Contact Collector before the deadline. |
| Need loan payoff proof | Tax records do not show mortgage releases. | Search Recorder records for release, satisfaction, cancellation or deed of trust release. |
| Assessed value seems wrong | Reassessment, property-card error, classification issue or market change. | Save the property card, gather comparable sales/evidence and file BOE appeal before the second Monday in July. |
| Boundary line issue | GIS parcel lines are not survey-grade. | Use recorded plats, deeds, legal descriptions and a licensed surveyor. |
Practical Tips That Save Time on St. Louis County Real Property Records
Use these before buying, appealing, checking escrow, looking for an LLC owner, verifying a deed or researching a parcel across municipalities.
Locator number is your anchor
Use the same locator number across Assessor, Collector and GIS. For Recorder documents, switch to grantor/grantee and document-date search.
Search both owner and mailing clues
If owner display and mailing address differ, it may be a rental, trust, LLC, estate, management address or recently transferred property.
Verify municipality and tax district
St. Louis County has many municipalities and districts. The same street name can exist in multiple areas.
Do not rely on tax paid status as title proof
Paid taxes do not prove clear title. Search Recorder records for deeds, liens, releases and plats.
Appeal with data
Use photos, comparable properties, wrong square footage, incorrect classification and appraisal evidence—not only “too expensive.”
Check city/county before wasting time
“St. Louis, MO” may mean City or County. Wrong portal equals blank results and wrong phone calls.
St. Louis County Real Property Records FAQs
QHow do I search St. Louis County real property records online?▾
Start with the St. Louis County Assessor real estate search. You can search by locator number, owner name, property address or subdivision, then use the locator number for tax and GIS checks.
QWhat is a locator number in St. Louis County property records?▾
The locator number is the key property identifier used across St. Louis County real estate records. Save it from the Assessor record and use it when checking taxes, map records or office questions.
QWhere do I check St. Louis County real estate taxes?▾
Use the St. Louis County Collector of Revenue property tax inquiry/payment portal. Match locator number, address, owner and tax year before paying or downloading a receipt.
QWhere can I search St. Louis County deeds and liens?▾
Use the St. Louis County Recorder of Deeds for deeds, liens, mortgages, releases, subdivision plats and copy requests. Search by grantor/grantee names, date range, document type or book/page when available.
QCan I search St. Louis County property records by owner name?▾
Yes, the county real estate search supports owner-name searching. Try last name only, LLC/trust name, prior owner, or business name variations if a full-name search fails.
QAre St. Louis County GIS maps legal surveys?▾
No. GIS maps are useful for parcel location, map layers and district context, but legal boundary, fence, easement and access issues should be verified with recorded plats, deeds and a licensed surveyor.
QWhen is the St. Louis County real property assessment appeal deadline?▾
Missouri Board of Equalization property assessment appeals are generally due by the second Monday in July. Check the current St. Louis County BOE page for the exact year and filing method.
QWho do I call for St. Louis County Assessor questions?▾
For assessment and real estate property-record questions, contact the Assessor at 314-615-2555 or Assessor@stlouiscountymo.gov. Have the locator number and property address ready.
QIs St. Louis County the same as the City of St. Louis for property records?▾
No. St. Louis County and the City of St. Louis use separate property, tax and recorder systems. Confirm whether the property is inside city limits or in a county municipality before searching.
QIs Property-Recordss.org the official St. Louis County website?▾
No. Property-Recordss.org is an independent informational guide. Always verify ownership, locator number, tax balances, receipts, deeds, liens, plats, appeals and legal property details directly with St. Louis County or Missouri official sources.
Final Takeaway
For St. Louis County real property records, start with the Assessor to find the locator number, owner display, address and assessment details. Use that locator number with the Collector to check real estate taxes and with GIS to confirm location. If you need legal ownership history, deed copies, liens, mortgages, releases or plats, use the Recorder of Deeds instead of relying only on a property search page.
Independent guide notice: Property-Recordss.org is not affiliated with St. Louis County Government, the St. Louis County Assessor, Collector of Revenue, Recorder of Deeds, GIS Service Center, Missouri State Tax Commission, any court, title company, surveyor or attorney. This page is for educational help only. Always verify property records, tax balances, deed copies, liens, plats, appeal deadlines, legal descriptions and ownership status directly with official sources before making legal, financial, tax, title or real estate decisions.