Skip to main content
County ProfileKS

Riley County

Population: 71,959 · 9 ZIP codes

Demographics

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

People
Total population
71,959
People
Median age
25.5
Housing
Total households
27,695
Income
Median household income
$61,098
Housing
Total housing units
30,755
Employment
Employment rate
58.2%
Education
Bachelor’s degree or higher
48.9%
Healthcare
Insured population
93%
County details
Local time 02:15:30(CT)
NameRiley
Total ZIP codes9total
ZIP codes (by type)
8 Standard1 PO Box
Area code785
TimezoneCentral Time (CT)
Coordinates39.2912101, -96.7274879
Land area609.7 sq miles(1,579 km²)

Map of Riley county, Kansas with ZIP codes

Map of Riley County, Kansas and ZIP codes

Cities and Communities in Riley County

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

CityPopulation
Median incomeHousehold
ZIP codes
Manhattan54,100$60,1724ZIPs
Fort Riley9,230$54,3621ZIPs
Ogden1,661$68,4211ZIPs
Riley938$93,7501ZIPs
Leonardville432$77,0831ZIPs
Randolph159$82,5001ZIPs

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

ZIP Codes in Riley County

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

ZIPCity
Median incomeHousehold
Population (ZIP)
66502Manhattan$54,83344,384
66442Fort Riley$51,61016,751
66503Manhattan$97,84616,565
66506Manhattan3,128
66517Ogden$68,4211,666
66531Riley$79,0631,359
66449Leonardville$90,089807
66554Randolph$97,411565
66505Manhattan

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