Residential delivery area · Wisconsin
ZIP Code 54151: Niagara, WI
ZIP code 54151 uses the postal name Niagara, Wisconsin and lies mostly in Marinette County (71% of its land) with the rest in Florence County (Census 2020 ZIP-county file). About 3,400 people live there (Census Bureau, ACS 2020-2024). Median household income is $69,511 (Census Bureau, ACS 2020-2024). By Census place, 2% of its land lies in Niagara; 98% is outside any Census place.
- ACS2020-24
- Census2020
- FHFA2025
- ZBP2023
- IRS2022
- Town
- Niagara · its only residential ZIP
- County
- Marinette County (71%); Florence County (29%)
- Census places
- Niagara
- Micro area
- Marinette, WI-MI
- House districts
- WI-8 (71%), WI-7 (29%) 119th Congress, by share of land
- State
- Wisconsin
- Time zone
- Central
- Land area
- 129.1 sq mi · 26 people per sq mi
Where is ZIP code 54151?
54151 centers on 45.725°, -87.988° and covers 129.1 square miles of land plus 2.3 of water. It borders 8 ZIP codes: 49876, 49802, 54156, 49892, 49870, 54119, 49801, 54121.
The map draws ZIP code areas only. For the streets inside 54151, 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 54151 compare with the rest of Marinette County?
| Measure | 54151 | In Marinette County | In WI |
|---|---|---|---|
| People (ACS 2020-2024) | 3,411 | 4th of 16 | 352nd of 783 |
| Median household income | $70k | 4th of 11 | 434th of 610 |
| Median home value | $140k | 9th of 10 | 600th of 612 |
Its median household income is higher than in 46% of U.S. residential ZIP codes, and it is denser than 31% 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 54151?
The 2020 Census counted 3,515 people in 54151; the ACS, which samples households over 2020-2024, estimates 3,411. Its boundary changed between the 2010 and 2020 censuses, so the two counts are not compared.
- People, ACS 2020-2024
- 3,411
- 2020 Census count
- 3,515
- Households
- 1,515
- Median age
- 47.9
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 54151?
Of the 3,411 people the ACS estimates in 54151, 20.3% are under 18 and 20.6% are 65 or older. The largest group by race and Hispanic origin is White (not Hispanic) (96.7%).
- Under 1820.3%
- 18 to 6459.2%
- 65 and older20.6%
- White, not Hispanic96.7%
- Other or two or more2.2%
- Hispanic or Latino0.8%
- Black, not Hispanic0.3%
- Asian, not Hispanic0.0%
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 54151 earn?
Median household income is $69,511 (ACS 2020-2024), the 4th highest of the 11 ranked ZIP codes in Marinette County.
- Median household income
- $69,511±$7,439
- Income per person
- $36,635
- Below the poverty line
- 11.4%
- Unemployed (of the labor force)
- 3.8%
- Adults 25+ with a bachelor's degree
- 18.7%
- Adjusted gross income per tax return, 2022
- $59,1811,710 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 54151?
FHFA's house price index for 54151, built from repeat sales and appraisals of the same homes, rose 102% from 2015 to 2025 and rose 72% from 2020 to 2025, and moved +21.5% in 2025.
- Median home value (owners' estimate)
- $140,100
- Median gross rent
- $799
- Homes owned by their occupants
- 84.9%
- Housing units
- 1,946
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 54151?
71 business establishments had a location in this ZIP code in 2023, 6 fewer than in 2018; the most are in construction (ZIP Code Business Patterns).
- Construction13
- Health care and social assistance12
- Accommodation and food services9
- Other services (except public administration)9
- Retail trade7
- Manufacturing5
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 54151?
| ZIP | Town | People | Household income | Distance |
|---|---|---|---|---|
| 49876 | Quinnesec, MI | 923 | $40k | 5.3 mi |
| 49802 | Kingsford, MI | 5,975 | $62k | 6.9 mi |
| 54156 | Pembine | 1,502 | $50k | 8.2 mi |
| 49892 | Vulcan, MI | 2,037 | $75k | 10.1 mi |
| 49870 | Norway, MI | 3,509 | $75k | 11.1 mi |
| 54119 | Dunbar | 715 | $54k | 12.7 mi |
| 49801 | Iron Mountain, MI | 11,860 | $67k | 14.0 mi |
| 54121 | Florence | 3,257 | $59k | 19.0 mi |
| 49852 | Loretto, MI | 178 | $83k | 9.3 mi (near) |
Source: PlainZIP from the Census 2020 ZCTA boundaries (shared edges) and internal points; figures ACS 2020-2024.