Looking for a FEMA Elevation Certificate in Clayton, MO? Describe your project once and up to three licensed surveyors who work in Clayton and St. Louis County get back to you with a quote. It's free and there is no obligation.
Clayton is home to about 17,512 people (2024 Census Bureau estimate), a stable community (+0.8% since 2020). With 6,985 people per sq mi, it is a densely built-up area. Homes in or near mapped flood zones often need an Elevation Certificate for flood insurance, a LOMA request or new construction.
Clayton at a glance
- Population (Census Bureau estimate, 2024)
- 17,512 (+0.8% since 2020)
- Rank in Missouri
- 44th of 938 cities and towns
- Land area
- 2.5 sq mi
- Population density
- 6,985 people per sq mi (densely built-up)
- Type
- City (Clayton city)
- Main county
- St. Louis County
What to check before hiring in Clayton
- License: in Missouri, Elevation Certificates are signed by a licensed land surveyor, engineer or architect. Ask for the license number.
- Flood zone: check your zone on the FEMA Flood Map Service Center before you ask for quotes.
- Price drivers: distance to the nearest benchmark, building type, and whether a LOMA package is included.
- Existing certificate: ask your community's floodplain manager whether a certificate is already on file for your home.
Useful official resources
-
FEMA Flood Map Service Center
Check whether your property is in a mapped flood zone.
-
FloodSmart (NFIP)
The National Flood Insurance Program site for policyholders.
Services available in Clayton
-
FEMA Elevation Certificate
Field survey and FEMA Elevation Certificate for flood insurance rating or floodplain management.
-
LOMA support
Elevation data and the documents for a Letter of Map Amendment request to FEMA.
Frequently asked questions in Clayton
How much does an Elevation Certificate cost in Clayton, MO?
It depends on the site, the building and the distance to survey benchmarks. Describe your property: surveyors who serve Clayton reply with a quote.
Is my home in a flood zone?
Check your address on the FEMA Flood Map Service Center. Your surveyor confirms the zone on the certificate.
How long does it take?
Usually one to three weeks, depending on the surveyor's schedule. Tell us your deadline, for example a policy renewal or a closing.
Which licensed surveyors will contact me?
Up to three independent licensed surveyors who serve Clayton and the surrounding area, chosen for the service you need. Your details are shared only with your consent.
Source: U.S. Census Bureau, Population Estimates Program (Vintage 2024) and Gazetteer Files (public domain), imported on 10/31/2026. Figures describe the incorporated place or county as published; they are shown for information only.