Looking for a FEMA Elevation Certificate in Onawa, IA? Describe your project once and up to three licensed surveyors who work in Onawa and Monona County get back to you with a quote. It's free and there is no obligation.
Onawa is home to about 2,795 people (2024 Census Bureau estimate), a shrinking community (−3.9% since 2020). With 531 people per sq mi, it is a semi-rural area. Homes in or near mapped flood zones often need an Elevation Certificate for flood insurance, a LOMA request or new construction.
Onawa at a glance
- Population (Census Bureau estimate, 2024)
- 2,795 (−3.9% since 2020)
- Rank in Iowa
- 128th of 940 cities and towns
- Land area
- 5.3 sq mi
- Population density
- 531 people per sq mi (semi-rural)
- Type
- City (Onawa city)
- Main county
- Monona County
What to check before hiring in Onawa
- License: in Iowa, 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 Onawa
-
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 Onawa
How much does an Elevation Certificate cost in Onawa, IA?
It depends on the site, the building and the distance to survey benchmarks. Describe your property: surveyors who serve Onawa 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 Onawa 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.