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

Lyon County, Iowa

Lyon County, Iowa, has 12,354 residents (July 2025 estimate). Its county seat is Rock Rapids. It uses Central Time and covers 588 sq mi (1,522 km²) of land.

Des MoinesCedar RapidsDavenport
Lyon County in Iowa
Rock RapidsLarchwoodGeorgeInwoodDoon
Lyon County and its neighbors (simplified outlines). Open in OpenStreetMap ↗
Resident population, July 2025
12,354
Land area
588 sq mi (1,522 km²)
County seat or government
Rock Rapids
Time zone
Central TimeUTC-06:00 in January; UTC-05:00 in July
Median household income
$76,746 ± $7,073
Median home value
$230,000 ± $11,175
Median rent, with utilities
$843 ± $21
Homes lived in by their owners
80.9% ± 2.3 points
County type
County
Metro or micro area
Outside any metro or micro areaNext to: Sioux Falls, SD-MN metro area and Worthington, MN micro area
Water area
0.17 sq mi (0.44 km²)
State
Iowa
County code (FIPS)
19119
Coordinates (central point)
43.383580, -96.207201
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 Lyon 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. 512016,430 people
  2. 512475,094 people
  3. 512464,041 people
  4. 512392,876 people
  5. 512412,103 people
  6. 512401,914 people
  7. 512371,605 people
  8. 512351,007 people
  9. 51243735 people
  10. 51232658 people
  11. 51230478 people
  12. 51242379 people

12 ZIP Code areas overlap Lyon 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 Lyon County, largest first

  1. Rock Township3,297 people
  2. Larchwood Township1,617 people
  3. Richland Township1,108 people
  4. Wheeler Township1,056 people
  5. Doon Township1,018 people
  6. Elgin Township532 people
  7. Lyon Township454 people
  8. Riverside Township410 people
  9. Logan Township400 people
  10. Liberal Township386 people
  11. Sioux Township377 people
  12. Centennial Township289 people
All 18
  1. Garfield Township264 people
  2. Allison Township250 people
  3. Grant Township232 people
  4. Cleveland Township223 people
  5. Dale Township155 people
  6. Midland Township94 people

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

School districts in Lyon County, largest first

  1. Sheldon Community School District7,946 people
  2. Rock Valley Community School District5,212 people
  3. West Lyon Community School District5,160 people
  4. Central Lyon Community School District4,619 people
  5. Boyden-Hull Community School District3,953 people
  6. George-Little Rock Community School District2,399 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. Rock Rapids, Iowa (city)2,661 people
  2. Larchwood, Iowa (city)1,136 people
  3. George, Iowa (city)1,064 people
  4. Inwood, Iowa (city)793 people
  5. Doon, Iowa (city)529 people
  6. Little Rock, Iowa (city)395 people
  7. Lester, Iowa (city)340 people
  8. Alvord, Iowa (city)173 people

Bordering areas, nearest first

Distances are straight lines between map points.

  1. Rock County, Minnesota20 mi north
  2. Sioux County, Iowa21 mi south
  3. Lincoln County, South Dakota27 mi west
  4. Osceola County, Iowa29 mi east
  5. Nobles County, Minnesota30 mi northeast
  6. Minnehaha County, South Dakota35 mi northwest
  7. O'Brien County, Iowa36 mi southeast

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.