Residential delivery area · Iowa
ZIP Code 51054: Sergeant Bluff, IA
ZIP code 51054 uses the postal name Sergeant Bluff, Iowa and lies entirely in Woodbury County (Census 2020 ZIP-county file). About 5,600 people live there (Census Bureau, ACS 2020-2024). Median household income is $119,716 (Census Bureau, ACS 2020-2024). By Census place, 8% of its land lies in Sergeant Bluff, and 3% in smaller places; 89% is outside any Census place.
- ACS2020-24
- Census2020
- FHFA2025
- ZBP2023
- IRS2022
- Town
- Sergeant Bluff · its only residential ZIP
- County
- Woodbury County
- Census places
- Sergeant Bluff
- Metro area
- Sioux City, IA-NE-SD
- House district
- IA-4 119th Congress
- State
- Iowa
- Time zone
- Central
- Land area
- 38.7 sq mi · 144 people per sq mi
Where is ZIP code 51054?
51054 centers on 42.381°, -96.335° and covers 38.7 square miles of land plus 0.8 of water. It borders 6 ZIP codes: 51111, 51106, 51052, 51007, 68030, 68731.
The map draws ZIP code areas only. For the streets inside 51054, 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 51054 compare with the rest of Woodbury County?
| Measure | 51054 | In Woodbury County | In IA |
|---|---|---|---|
| People (ACS 2020-2024) | 5,583 | 6th of 26 | 136th of 970 |
| Median household income | $120k | 1st of 11 | 14th of 396 |
| Median home value | $302k | 1st of 14 | 51st of 423 |
Its median household income is higher than in 90% of U.S. residential ZIP codes, and it is denser than 59% 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 51054?
The 2020 Census counted 5,737 people in 51054; the ACS, which samples households over 2020-2024, estimates 5,583. Between the 2010 and 2020 censuses its population grew 12.3% (its boundary stayed at least 90% the same).
- People, ACS 2020-2024
- 5,583
- 2020 Census count
- 5,737+12.3% since 2010 (5,110)
- Households
- 1,961
- Median age
- 37.0
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 51054?
Of the 5,583 people the ACS estimates in 51054, 27.9% are under 18 and 13.1% are 65 or older. The largest group by race and Hispanic origin is White (not Hispanic) (86.7%).
- Under 1827.9%
- 18 to 6458.9%
- 65 and older13.1%
- White, not Hispanic86.7%
- Asian, not Hispanic6.9%
- Hispanic or Latino3.0%
- Other or two or more2.5%
- Black, not Hispanic0.9%
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 51054 earn?
Median household income is $119,716 (ACS 2020-2024), the highest of the 11 ranked ZIP codes in Woodbury County. It is not measurably different from 2015-2019 ($118,225 in 2024 dollars): the change is within the surveys' margins of error.
- Median household income
- $119,716±$13,561
- Income per person
- $47,922
- Below the poverty line
- 8.9%
- Unemployed (of the labor force)
- 1.6%
- Adults 25+ with a bachelor's degree
- 36.8%
- Adjusted gross income per tax return, 2022
- $86,0472,820 returns; wages 74% 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 51054?
FHFA's house price index for 51054, built from repeat sales and appraisals of the same homes, rose 57% from 2015 to 2025 and rose 38% from 2020 to 2025, and moved +1.8% in 2025.
- Median home value (owners' estimate)
- $301,900
- Median gross rent
- $1,156
- Homes owned by their occupants
- 75.3%
- Housing units
- 2,110
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 51054?
120 business establishments had a location in this ZIP code in 2023, 1 fewer than in 2018; the most are in health care and social assistance (ZIP Code Business Patterns).
- Health care and social assistance17
- Retail trade14
- Other services (except public administration)13
- Accommodation and food services12
- Construction11
- Manufacturing10
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 51054?
| ZIP | Town | People | Household income | Distance |
|---|---|---|---|---|
| 51111 | Sioux City | 39 | – | 3.9 mi |
| 51106 | Sioux City | 28,592 | $78k | 5.8 mi |
| 51052 | Salix | 1,050 | $109k | 6.1 mi |
| 51007 | Bronson | 691 | $117k | 7.6 mi |
| 68030 | Homer, NE | 671 | $76k | 7.7 mi |
| 68731 | Dakota City, NE | 3,469 | $80k | 8.2 mi |
| 68776 | South Sioux City, NE | 15,373 | $69k | 7.9 mi (near) |
| 51101 | Sioux City | 1,031 | $15k | 8.4 mi (near) |
Source: PlainZIP from the Census 2020 ZCTA boundaries (shared edges) and internal points; figures ACS 2020-2024.