May we count your visit with Google Analytics? It uses cookies and sends visit data to Google. You can change this any time under Cookie choices. Privacy

Where am ILOCATED

Cerro Gordo County, Iowa

Cerro Gordo County, Iowa, has 42,372 residents (July 2025 estimate). Its county seat is Mason City. It uses Central Time and covers 568 sq mi (1,472 km²) of land.

Des MoinesCedar RapidsDavenport
Cerro Gordo County in Iowa
Mason CityClear LakeNora SpringsRockwellVentura
Cerro Gordo County and its neighbors (simplified outlines). Open in OpenStreetMap ↗
Resident population, July 2025
42,372
Land area
568 sq mi (1,472 km²)
County seat or government
Mason City
Time zone
Central TimeUTC-06:00 in January; UTC-05:00 in July
Median household income
$68,189 ± $2,473
Median home value
$166,400 ± $6,119
Median rent, with utilities
$850 ± $42
Homes lived in by their owners
70.4% ± 1.6 points
County type
County
Metro or micro area
Mason City, IA micro areaCentral county
Water area
6.82 sq mi (17.7 km²)
State
Iowa
County code (FIPS)
19033
Coordinates (central point)
43.074975, -93.250965
Open this point in the location finder

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 Cerro Gordo County

Time zoneLocal time and UTC offsetNext clock change
Central TimeAmerica/ChicagoUTC-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

  1. 5040128,703 people
  2. 504289,071 people
  3. 504582,094 people
  4. 504561,699 people
  5. 504681,617 people
  6. 504691,527 people
  7. 504751,446 people
  8. 50449785 people
  9. 50482748 people
  10. 50464694 people
  11. 50479655 people
  12. 50457463 people
All 17
  1. 50434396 people
  2. 50444394 people
  3. 50477250 people
  4. 50433157 people
  5. 5046763 people

17 ZIP Code areas overlap Cerro Gordo 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 Cerro Gordo County, largest first

  1. Clear Lake Township1,469 people
  2. Falls Township1,036 people
  3. Geneseo Township1,031 people
  4. Grimes Township859 people
  5. Lime Creek Township532 people
  6. Pleasant Valley Township442 people
  7. Lincoln Township399 people
  8. Mount Vernon Township332 people
  9. Grant Township316 people
  10. Portland Township303 people
  11. Mason Township278 people
  12. Bath Township226 people
All 16
  1. Owen Township224 people
  2. Union Township191 people
  3. Lake Township189 people
  4. Dougherty Township148 people

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

School districts in Cerro Gordo County, largest first

  1. Mason City Community School District28,006 people
  2. Clear Lake Community School District8,321 people
  3. Forest City Community School District7,414 people
  4. Garner-Hayfield-Ventura Community School District5,540 people
  5. Central Springs Community School District5,466 people
  6. West Fork Community School District4,400 people
  7. Rudd-Rockford-Marble Rock Community School District3,006 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.

  1. Mason City, Iowa (city)27,050 people
  2. Clear Lake, Iowa (city)7,607 people
  3. Nora Springs, Iowa (city)1,363 people
  4. Rockwell, Iowa (city)986 people
  5. Ventura, Iowa (city)733 people
  6. Thornton, Iowa (city)514 people
  7. Plymouth, Iowa (city)407 people
  8. Meservey, Iowa (city)262 people
  9. Swaledale, Iowa (city)148 people
  10. Rock Falls, Iowa (city)119 people
  11. Dougherty, Iowa (city)88 people
  12. Portland, Iowa (CDP)29 people
All 13
  1. Burchinal, Iowa (CDP)6 people

Bordering areas, nearest first

Distances are straight lines between map points.

  1. Worth County, Iowa21 mi north
  2. Franklin County, Iowa23 mi south
  3. Floyd County, Iowa23 mi east
  4. Hancock County, Iowa25 mi west
  5. Mitchell County, Iowa30 mi northeast
  6. Winnebago County, Iowa32 mi northwest
  7. Butler County, Iowa33 mi southeast
  8. Wright County, Iowa34 mi southwest

Before using this answer on a form

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.