Fremont County, Iowa

Fremont County, Iowa, has 6,522 residents (July 2025 estimate). Its county seat is Sidney. It uses Central Time and covers 511 sq mi (1,324 km²) of land.

Fremont County in Iowa

Fremont County and its neighbors (simplified outlines). Open in OpenStreetMap ↗

Resident population, July 2025: 6,522
Land area: 511 sq mi (1,324 km²)
County seat or government: Sidney
Time zone: Central TimeUTC-06:00 in January; UTC-05:00 in July
Median household income: $71,621 ± $5,642
Median home value: $154,400 ± $13,133
Median rent, with utilities: $746 ± $56
Homes lived in by their owners: 78.3% ± 3.5 points
County type: County
Metro or micro area: Outside any metro or micro areaNext to: Omaha, NE-IA metro area
Water area: 5.47 sq mi (14.2 km²)
State: Iowa
County code (FIPS): 19071
Coordinates (central point): 40.742590, -95.599182

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These coordinates mark a central point for the area, not a street address. Income, home value, rent and homes lived in by their owners: U.S. Census Bureau, American Community Survey 2020–2024 5-year estimates, ± margin at 90% confidence; checked on October 13, 2026.

Time zones in Fremont County

Time zone	Local time and UTC offset	Next clock change
Central TimeAmerica/Chicago	UTC-06:00 in January; UTC-05:00 in July. Enable JavaScript for the live clock.	Enable JavaScript for upcoming changes.

Near a time-zone line, check where you are with the time-zone finder. Your phone’s setting can differ.

ZIP Code areas, largest first

516015,629 people
516521,569 people
516531,446 people
516401,381 people
51639919 people
51645419 people
51649346 people
51654325 people
51648257 people
51650197 people
51647172 people

11 ZIP Code areas overlap Fremont County. People counts are 2020–2024 estimates for each whole ZIP area. Mailing ZIPs can differ; check an address with USPS ZIP Code Lookup.

Official county information

Fremont County government website ↗ is the next stop for county offices, tax, voting, jury and records information. A geographic lookup cannot determine eligibility, tax liability or a court obligation.

Townships in Fremont County, largest first

Sidney Township1,450 people
Fisher Township719 people
Green Township472 people
Washington Township320 people
Riverside Township311 people
Scott Township273 people
Benton Township257 people
Riverton Township211 people
Monroe Township177 people
Locust Grove Township150 people
Walnut Township145 people
Prairie Township143 people

All 13

Madison Township85 people

People counts are American Community Survey 2020–2024 5-year estimates. All townships in Iowa, by county

School districts in Fremont County, largest first

Shenandoah Community School District7,004 people
Fremont-Mills Community School District2,561 people
Sidney Community School District2,151 people
Hamburg Community School District1,324 people

Districts with land in the county; a district can cross county lines. People counts are American Community Survey 2020–2024 5-year estimates. A district boundary doesn’t decide which school a student attends.

Cities, towns and communities, largest first

These areas overlap the mapped boundary; an overlap does not mean that every address belongs to both.

Bordering areas, nearest first

Distances are straight lines between map points.

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Use a precise point for address-level questions. A device accuracy circle can cross a boundary; confirm tax, voting or jury details with the responsible office.

Find the county where you are now, check its ZIP area, or check the time zone where you are.

See this county on Census.gov ↗

Areas that only touch the edge

These areas meet the boundary only along a sliver. Most addresses here are not in them; for an address near the line, check with the county.