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zipcodes.pro — CITY/IA/DENISON

Denison ZIP code, Iowa

The ZIP code for Denison, IA is 51442, and its area code is 712.

USPS city name
1 ZIP code
Population
8,260
Area code
712
State
Iowa

Denison in numbers

About 8,260 people live in Denison, in 3,091 households, the 49th-largest of Iowa's 1,017 census places. The median household income is $65,684 a year, 12% below the Iowa median of $75,059 (US: $80,734). The median owner-occupied home is valued at $150,200 (28% below the Iowa median), and median gross rent is $731 a month. The median age is 34.3; 17.5% of adults 25 and over hold a bachelor's degree or higher (31.4% across Iowa); the average commute takes 13 minutes.

Population8,260Denison8,260
Households3,091Denison3,091
Median age34.3Denison34.3Iowa38.6US 38.9
Median household income$65,684Denison$65,684Iowa$75,059US $80,734
Median home value$150,200Denison$150,200Iowa$208,000US $332,700
Median gross rent$731Denison$731Iowa$972US $1,413
Bachelor's degree or higher17.5%Denison17.5%Iowa31.4%US 35.7%
Mean commute12.7 minDenison12.7 minIowa19.8 minUS 26.4 min
Population density1,263 / sq miDenison1,263 / sq mi

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

ZIP codes addressed as Denison

ZIP codes with the USPS city name Denison
ZIP City Type Population Median income Median home
51442 Denison , IA Standard 9,692 $66,767 $159,400

Map of Denison ZIP codes

51442

The ZIP codes of Denison, 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 Denison

The nearest larger towns are Carroll (10,208 people, 25 mi), Storm Lake (11,428 people, 44 mi) and Council Bluffs (62,586 people, 60 mi).

Towns near Denison
TownPopulationDistance
Carroll 10,208 25.3 mi
Harlan 4,891 25.3 mi

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

Cite this page

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

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