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County ProfileIA

Lyon County

Population: 11,934 · 8 ZIP codes

Demographics

Source: U.S. Census Bureau (ACS/Decennial). Estimates vary by year.

People
Total population
11,934
People
Median age
38.2
Housing
Total households
4,479
Income
Median household income
$76,746
Housing
Total housing units
4,870
Employment
Employment rate
66.6%
Education
Bachelor’s degree or higher
20.4%
Healthcare
Insured population
96%
County details
Local time 00:52:07(CT)
NameLyon
Total ZIP codes8total
ZIP codes (by type)
7 Standard1 PO Box
Area code712
TimezoneCentral Time (CT)
Coordinates43.3835796, -96.2072011
Land area587.6 sq miles(1,521.9 km²)

Map of Lyon county, Iowa with ZIP codes

Map of Lyon County, Iowa and ZIP codes

Cities and Communities in Lyon County

Compare the largest cities in Lyon County by population, median income, and growth. Use the table below to analyze key demographic shifts across the region.

CityPopulation
Median incomeHousehold
ZIP codes
Rock Rapids2,611$63,9421ZIPs
George1,077$57,9411ZIPs
Inwood928$62,3331ZIPs
Larchwood926$67,1881ZIPs
Doon619$63,7501ZIPs
Little Rock439$68,1941ZIPs
Lester296$99,0631ZIPs
Alvord206$73,5941ZIPs

Data unavailable or suppressed by the U.S. Census Bureau for areas with small sample sizes to protect individual privacy.

ZIP Codes in Lyon County

Review the most populated postal areas across Lyon County. Use the ranking below to compare resident density and demographic scales between the county's major zones.

ZIPCity
Median incomeHousehold
Population (ZIP)
51246Rock Rapids$72,4003,834
51241Larchwood$87,4461,916
51240Inwood$83,9291,816
51237George$61,6671,654
51235Doon$71,0161,122
51243Little Rock$83,750742
51230Alvord$75,625451
51242Lester$95,625344

Data Sources & Citations

The geographic and demographic information presented on this site is compiled from publicly available, authoritative sources, including:

  • United States Census BureauDemographic, population, housing, and socioeconomic data sourced from Census Bureau datasets, including the Decennial Census and the American Community Survey (ACS).Census Data
  • United States Postal Service (USPS)ZIP code classifications, delivery types, and postal designations used for reference purposes. USPS ZIP codes are intended for mail delivery and may not always align exactly with Census geographic boundaries.USPS