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zipcodes.pro — CITY/IA/KEYSTONE

Keystone ZIP code, Iowa

The ZIP code for Keystone, IA is 52249, and its area code is 319.

USPS city name
1 ZIP code
Population
674
Area code
319
State
Iowa

Keystone in numbers

About 674 people live in Keystone, in 270 households. The median household income is $67,500 a year, 10% below the Iowa median of $75,059 (US: $80,734). The median owner-occupied home is valued at $148,400 (29% below the Iowa median), and median gross rent is $892 a month. The median age is 43.5; 22.2% of adults 25 and over hold a bachelor's degree or higher (31.4% across Iowa); the average commute takes 36 minutes.

Population674Keystone674
Households270Keystone270
Median age43.5Keystone43.5Iowa38.6US 38.9
Median household income$67,500Keystone$67,500Iowa$75,059US $80,734
Median home value$148,400Keystone$148,400Iowa$208,000US $332,700
Median gross rent$892Keystone$892Iowa$972US $1,413
Bachelor's degree or higher22.2%Keystone22.2%Iowa31.4%US 35.7%
Mean commute35.7 minKeystone35.7 minIowa19.8 minUS 26.4 min
Population density1,504 / sq miKeystone1,504 / sq mi

U.S. Census Bureau, American Community Survey 2020–2024 5-year estimates, for the census place Keystone city. Survey estimates carry margins of error, wider for small places. Sources and methods.

ZIP codes addressed as Keystone

ZIP codes with the USPS city name Keystone
ZIP City Type Population Median income Median home
52249 Keystone , IA Standard 1,060 $75,417 $163,200

Map of Keystone ZIP codes

52249

The ZIP codes of Keystone, IA, shaded. Outlines are Census ZIP Code Tabulation Areas (2020), which approximate the mail routes; PO-box and single-address codes have no area and are not drawn. Click any area to open its ZIP code.

Towns near Keystone

The nearest larger towns are Belle Plaine (2,380 people, 8.2 mi), Newhall (996 people, 12 mi) and Dysart (1,519 people, 13 mi).

Towns near Keystone
TownPopulationDistance
Vinton 4,948 14.3 mi
Marengo 2,725 15.6 mi
Tama 3,051 19.4 mi
Fairfax 2,900 22.2 mi
Williamsburg 3,360 24.7 mi
Center Point 2,562 24.9 mi
Hiawatha 7,206 26.4 mi
Cedar Rapids 137,264 26.8 mi
Robins 3,332 27.5 mi

More nearby: every ZIP code in Benton County · Iowa ZIP codes

Cite this page

zipcodes.pro. “Keystone, IA ZIP codes.” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/city/ia/keystone

Underlying data is public domain or openly licensed — sources, vintages and licences.