Residential delivery area · Iowa
ZIP Code 50703: Waterloo, IA
ZIP code 50703 uses the postal name Waterloo, Iowa and lies entirely in Black Hawk County (Census 2020 ZIP-county file). About 18,000 people live there (Census Bureau, ACS 2020-2024), the least populous of Waterloo's 3 residential ZIP codes. Median household income is $50,060 (Census Bureau, ACS 2020-2024). By Census place, 26% of its land lies in Waterloo; 74% is outside any Census place.
- ACS2020-24
- Census2020
- FHFA2025
- ZBP2023
- IRS2022
- Town
- Waterloo · 3 residential ZIPs
- County
- Black Hawk County
- Census places
- Waterloo
- Metro area
- Waterloo-Cedar Falls, IA
- House district
- IA-2 119th Congress
- State
- Iowa
- Time zone
- Central
- Land area
- 93.2 sq mi · 193 people per sq mi
- PO Box ZIPs
- 50704 also use the name Waterloo
Where is ZIP code 50703?
50703 centers on 42.548°, -92.286° and covers 93.2 square miles of land plus 1.0 of water. It borders 9 ZIP codes: 50623, 50707, 50702, 50667, 50626, 50622, 50701, 50613, 50648.
The map draws ZIP code areas only. For the streets inside 50703, 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 50703 compare with the rest of Waterloo?
| Measure | 50703 | In Waterloo | In Black Hawk County | In IA |
|---|---|---|---|---|
| People (ACS 2020-2024) | 17,952 | 3rd of 3 | 4th of 17 | 47th of 970 |
| Median household income | $50k | 3rd of 3 | 13th of 13 | 393rd of 396 |
| Median home value | $96k | 3rd of 3 | 13th of 13 | 415th of 423 |
Its median household income is higher than in 14% of U.S. residential ZIP codes, and it is denser than 62% 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 50703?
The 2020 Census counted 18,913 people in 50703; the ACS, which samples households over 2020-2024, estimates 17,952. Between the 2010 and 2020 censuses its population fell 4.8% (its boundary stayed at least 90% the same).
- People, ACS 2020-2024
- 17,952
- 2020 Census count
- 18,913−4.8% since 2010 (19,863)
- Households
- 7,445
- Median age
- 38.5
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 50703?
Of the 17,952 people the ACS estimates in 50703, 23.9% are under 18 and 16.3% are 65 or older. The largest group by race and Hispanic origin is White (not Hispanic) (54.9%), then Black (not Hispanic) (24.6%).
- Under 1823.9%
- 18 to 6459.8%
- 65 and older16.3%
- White, not Hispanic54.9%
- Black, not Hispanic24.6%
- Hispanic or Latino11.1%
- Other or two or more7.7%
- Asian, not Hispanic1.8%
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 50703 earn?
Median household income is $50,060 (ACS 2020-2024), the 13th highest of the 13 ranked ZIP codes in Black Hawk County. It rose from $42,574 in 2015-2019 (in 2024 dollars), a change larger than the surveys' margins of error.
- Median household income
- $50,060
- Income per person
- $27,728
- Below the poverty line
- 17.6%
- Unemployed (of the labor force)
- 10.3%
- Adults 25+ with a bachelor's degree
- 13.6%
- Adjusted gross income per tax return, 2022
- $46,3057,510 returns; wages 76% 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 50703?
FHFA's house price index for 50703, built from repeat sales and appraisals of the same homes, rose 47% from 2015 to 2025 and rose 33% from 2020 to 2025, and moved +6.1% in 2025.
- Median home value (owners' estimate)
- $95,900
- Median gross rent
- $952
- Homes owned by their occupants
- 57.8%
- Housing units
- 8,440
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 50703?
455 business establishments had a location in this ZIP code in 2023, 26 more than in 2018; the most are in retail trade (ZIP Code Business Patterns).
- Retail trade55
- Health care and social assistance52
- Manufacturing46
- Transportation and warehousing45
- Other services (except public administration)44
- Accommodation and food services35
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 50703?
| ZIP | Town | People | Household income | Distance |
|---|---|---|---|---|
| 50623 | Dewar | 153 | $94k | 4.2 mi |
| 50707 | Evansdale | 7,784 | $63k | 4.9 mi |
| 50702 | Waterloo | 20,882 | $62k | 6.1 mi |
| 50667 | Raymond | 899 | $77k | 6.2 mi |
| 50626 | Dunkerton | 1,468 | $84k | 6.4 mi |
| 50622 | Denver | 3,549 | $95k | 9.0 mi |
| 50701 | Waterloo | 30,232 | $62k | 9.5 mi |
| 50613 | Cedar Falls | 43,867 | $79k | 10.2 mi |
| 50648 | Jesup | 4,269 | $95k | 11.8 mi |
| 50634 | Gilbertville | 761 | $80k | 9.7 mi (near) |
Source: PlainZIP from the Census 2020 ZCTA boundaries (shared edges) and internal points; figures ACS 2020-2024.