Washburn, IA ZIP codes

1 ZIP/ZCTA intersecting this Census place (CDP) in Black Hawk County.

ACS 2023 population

658

Median household income

$75,278

Median home value

$133,900

U.S. Census Bureau, ACS 2019–2023 5-year (vintage 2023). Geography: Census place Washburn (GEOID 1982290). Methodology

Combined population of ZIP/ZCTAs intersecting this place: 21,197 (1 ZIPs).

Combined population of ZIP/ZCTAs intersecting this place. Each intersecting ZIP contributes its full ZCTA population; overlap percents are descriptive only. This is not the Census place ACS headline above. Methodology

Map of Washburn, IA

Census place boundary and intersecting ZIP Code Tabulation Areas for Washburn, IA — Census place boundary for Washburn, IA. Intersecting ZCTAs may extend past the city limit. Not a USPS city limit. Boundaries: U.S. Census Bureau. Methodology · Data sources

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ZIP/ZCTA overlap with Washburn

Population overlap

Share of each ZIP/ZCTA’s population located within Washburn, based on ZIP Code Database place-overlap data. This is a population measure, not land-area overlap or the Census-place population.

507024.3%

ZIP Code Database place-overlap table, field percent_of_zip_population_in_place, keyed by place_geoid. Not ACS 2019–2023. Overlap vintage is the shipped overlap table and is separate from ACS. Methodology

ZIP codes intersecting Washburn

ZIP	City	County	Population	Income
50702	Waterloo	Black Hawk County	21,197	$59,784

USPS associates these ZIPs with Washburn

These codes list Washburn as a primary or acceptable city. They are not used for the ACS headline.

ZIP	City	County	Population	Income
50706	Waterloo	Black Hawk County	124	—