Residential delivery area · Iowa
ZIP Code 50643: Hudson, IA
ZIP code 50643 uses the postal name Hudson, Iowa and lies mostly in Black Hawk County (91% of its land) with the rest in Grundy County (Census 2020 ZIP-county file). About 3,000 people live there (Census Bureau, ACS 2020-2024). Median household income is $125,804 (Census Bureau, ACS 2020-2024). Its land lies mostly outside any Census place; 4% is in small places.
- ACS2020-24
- Census2020
- FHFA2025
- ZBP2023
- IRS2022
- Town
- Hudson · its only residential ZIP
- County
- Black Hawk County (91%); Grundy County (9%)
- Metro area
- Waterloo-Cedar Falls, IA
- House district
- IA-2 119th Congress
- State
- Iowa
- Time zone
- Central
- Land area
- 57.6 sq mi · 53 people per sq mi
Where is ZIP code 50643?
50643 centers on 42.358°, -92.464° and covers 57.6 square miles of land plus 0.1 of water. It borders 6 ZIP codes: 50612, 50701, 50669, 50675, 50613, 50624.
The map draws ZIP code areas only. For the streets inside 50643, open its center on OpenStreetMap.
Source: U.S. Census Bureau, 2020 ZCTA cartographic boundaries and the 2023 Gazetteer (2020 ZCTAs); ZIP-to-county shares, Census places and House districts (119th Congress) from the Census 2020 relationship files (shares of land); metro area from the OMB delineation (July 2023); town name and time zone from simplemaps US ZIP Codes (CC BY 4.0).
How does 50643 compare with the rest of Black Hawk County?
| Measure | 50643 | In Black Hawk County | In IA |
|---|---|---|---|
| People (ACS 2020-2024) | 3,027 | 8th of 17 | 200th of 970 |
| Median household income | $126k | 1st of 13 | 10th of 396 |
| Median home value | $244k | 3rd of 13 | 103rd of 423 |
Its median household income is higher than in 92% of U.S. residential ZIP codes, and it is denser than 43% of all U.S. residential ZIP codes. ZIP codes at the ACS caps ($250,000 or more for household income, $2,000,000 or more for home value) share the top rank.
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B01003, B19013, B25077); ranks by PlainZIP over residential ZIP codes (ZCTAs).
How many people live in 50643?
The 2020 Census counted 2,819 people in 50643; the ACS, which samples households over 2020-2024, estimates 3,027. Its boundary changed between the 2010 and 2020 censuses, so the two counts are not compared.
- People, ACS 2020-2024
- 3,027
- 2020 Census count
- 2,819
- Households
- 1,056
- Median age
- 40.2
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B01003, B01002, B11001); 2020 Census (DHC P1); 2010 Census (SF1 P1).
Who lives in 50643?
Of the 3,027 people the ACS estimates in 50643, 28.9% are under 18 and 14.3% are 65 or older. The largest group by race and Hispanic origin is White (not Hispanic) (93.0%).
- Under 1828.9%
- 18 to 6456.8%
- 65 and older14.3%
- White, not Hispanic93.0%
- Hispanic or Latino2.6%
- Other or two or more1.7%
- Black, not Hispanic1.5%
- Asian, not Hispanic1.2%
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B01001 age by sex, B03002 Hispanic or Latino origin by race); shares of the estimated population, small ZIP codes carry wide margins.
What do households in 50643 earn?
Median household income is $125,804 (ACS 2020-2024), the highest of the 13 ranked ZIP codes in Black Hawk County.
- Median household income
- $125,804±$13,214
- Income per person
- $47,249
- Below the poverty line
- 4.6%
- Unemployed (of the labor force)
- 4.7%
- Adults 25+ with a bachelor's degree
- 41.5%
- Adjusted gross income per tax return, 2022
- $91,9081,360 returns; wages 71% of AGI (IRS)
Source: U.S. Census Bureau, ACS 2020-2024 and 2015-2019 5-year estimates (B19013, B19301, B17001, B23025, B15003; 2015-2019 dollars converted with the BLS CPI-U, 1.22699); IRS Statistics of Income, ZIP code data, tax year 2022 (adjusted gross income per return, filed under the address on the return).
What are homes worth in 50643?
FHFA's house price index for 50643, built from repeat sales and appraisals of the same homes, rose 56% from 2015 to 2025 and rose 45% from 2020 to 2025, and moved +5.4% in 2025.
- Median home value (owners' estimate)
- $244,400
- Median gross rent
- $953
- Homes owned by their occupants
- 90.9%
- Housing units
- 1,098
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B25077, B25064, B25003, B25001); FHFA House Price Index, annual five-digit ZIP, updated 2026-03-31.
What businesses are in 50643?
59 business establishments had a location in this ZIP code in 2023, 5 fewer than in 2018; the most are in other services (except public administration) (ZIP Code Business Patterns).
- Other services (except public administration)10
- Construction9
- Retail trade8
- Wholesale trade4
- Professional, scientific, and technical services4
- Health care and social assistance4
Source: U.S. Census Bureau, ZIP Code Business Patterns 2023 and 2018 (establishments with paid employees, by the business's ZIP code).
Which ZIP codes are next to 50643?
| ZIP | Town | People | Household income | Distance |
|---|---|---|---|---|
| 50612 | Buckingham | 369 | $100k | 6.4 mi |
| 50701 | Waterloo | 30,232 | $62k | 7.4 mi |
| 50669 | Reinbeck | 2,439 | $82k | 7.8 mi |
| 50675 | Traer | 2,198 | $76k | 11.3 mi |
| 50613 | Cedar Falls | 43,867 | $79k | 12.0 mi |
| 50624 | Dike | 1,855 | $97k | 12.5 mi |
| 50702 | Waterloo | 20,882 | $62k | 10.5 mi (near) |
| 50657 | Morrison | 96 | $66k | 10.8 mi (near) |
| 50707 | Evansdale | 7,784 | $63k | 12.4 mi (near) |
Source: PlainZIP from the Census 2020 ZCTA boundaries (shared edges) and internal points; figures ACS 2020-2024.