Greene County, Iowa

Greene County, Iowa, has 8,658 residents (July 2025 estimate). Its county seat is Jefferson. It uses Central Time and covers 570 sq mi (1,475 km²) of land.

Greene County in Iowa

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

Resident population, July 2025: 8,658
Land area: 570 sq mi (1,475 km²)
County seat or government: Jefferson
Time zone: Central TimeUTC-06:00 in January; UTC-05:00 in July
Median household income: $63,409 ± $4,690
Median home value: $155,400 ± $14,618
Median rent, with utilities: $781 ± $68
Homes lived in by their owners: 76.4% ± 3.5 points
County type: County
Metro or micro area: Outside any metro or micro areaNext to: Carroll, IA micro area, Fort Dodge, IA micro area, Ames, IA metro area, and Des Moines-West Des Moines, IA metro area
Water area: 1.7 sq mi (4.4 km²)
State: Iowa
County code (FIPS): 19073
Coordinates (central point): 42.042513, -94.388727

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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 Greene 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

502209,216 people
501295,014 people
500581,999 people
514621,049 people
50107764 people
50050712 people
50217561 people
50029523 people
51453500 people
50026481 people
50235431 people
50128330 people

All 13

50064100 people

13 ZIP Code areas overlap Greene 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

We don’t have a website for this county yet. The US government’s local-office directory ↗ lists its offices. A geographic lookup cannot determine eligibility, tax liability or a court obligation.

Townships in Greene County, largest first

All 15

Willow Township102 people
Cedar Township94 people
Dawson Township70 people

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

School districts in Greene County, largest first

Perry Community School District9,852 people
Greene County Community School District7,379 people
Southeast Valley Community School District6,974 people
South Central Calhoun Community School District6,497 people
Panorama Community School District4,821 people
Coon Rapids-Bayard Community School District2,572 people
Glidden-Ralston Community School District1,689 people
Paton-Churdan Community School District1,074 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.