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zipcodes.pro — CITY/IA/GRAFTON

Grafton ZIP code, Iowa

The ZIP code for Grafton, IA is 50440, and its area code is 641.

USPS city name
1 ZIP code
Population
271
Area code
641
State
Iowa

Grafton in numbers

About 271 people live in Grafton, in 147 households. The median household income is $48,750 a year, 35% below the Iowa median of $75,059 (US: $80,734). The median owner-occupied home is valued at $93,300 (55% below the Iowa median), and median gross rent is $638 a month. The median age is 50.1; 14.3% of adults 25 and over hold a bachelor's degree or higher (31.4% across Iowa); the average commute takes 21 minutes.

Population271Grafton271
Households147Grafton147
Median age50.1Grafton50.1Iowa38.6US 38.9
Median household income$48,750Grafton$48,750Iowa$75,059US $80,734
Median home value$93,300Grafton$93,300Iowa$208,000US $332,700
Median gross rent$638Grafton$638Iowa$972US $1,413
Bachelor's degree or higher14.3%Grafton14.3%Iowa31.4%US 35.7%
Mean commute20.6 minGrafton20.6 minIowa19.8 minUS 26.4 min
Population density844 / sq miGrafton844 / sq mi

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

ZIP codes addressed as Grafton

ZIP codes with the USPS city name Grafton
ZIP City Type Population Median income Median home
50440 Grafton , IA Standard 361 $76,429 $122,500

Map of Grafton ZIP codes

50440

The ZIP codes of Grafton, 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 Grafton

The nearest larger towns are Plymouth (407 people, 6.4 mi), Manly (1,320 people, 7.3 mi) and St. Ansgar (1,206 people, 8.3 mi).

Towns near Grafton
TownPopulationDistance
Osage 3,561 13.4 mi
Mason City 27,050 14.3 mi
Clear Lake 7,607 20.5 mi
Austin, MN 26,358 24.0 mi
Albert Lea, MN 18,330 26.8 mi
Charles City 7,232 27.1 mi
Forest City 4,290 29.0 mi

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

Cite this page

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

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