Residential delivery area · Wisconsin
ZIP Code 54479: Spencer, WI
ZIP code 54479 uses the postal name Spencer, Wisconsin and lies mostly in Clark County (56% of its land) with the rest in Marathon County (Census 2020 ZIP-county file). About 3,600 people live there (Census Bureau, ACS 2020-2024). Median household income is $77,371 (Census Bureau, ACS 2020-2024). By Census place, 3% of its land lies in Spencer; 97% is outside any Census place.
- ACS2020-24
- Census2020
- FHFA2025
- ZBP2023
- IRS2022
- Town
- Spencer · its only residential ZIP
- County
- Clark County (56%); Marathon County (44%)
- Census places
- Spencer
- House district
- WI-7 119th Congress
- State
- Wisconsin
- Time zone
- Central
- Land area
- 76.8 sq mi · 47 people per sq mi
Where is ZIP code 54479?
54479 centers on 44.751°, -90.332° and covers 76.8 square miles of land plus 0.1 of water. It borders 6 ZIP codes: 54488, 54446, 54420, 54449, 54484, 54436.
The map draws ZIP code areas only. For the streets inside 54479, 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 54479 compare with the rest of Clark County?
| Measure | 54479 | In Clark County | In WI |
|---|---|---|---|
| People (ACS 2020-2024) | 3,630 | 4th of 20 | 333rd of 783 |
| Median household income | $77k | 2nd of 18 | 307th of 610 |
| Median home value | $183k | 5th of 16 | 512th of 612 |
Its median household income is higher than in 58% of U.S. residential ZIP codes, and it is denser than 41% 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 54479?
The 2020 Census counted 3,838 people in 54479; the ACS, which samples households over 2020-2024, estimates 3,630. Between the 2010 and 2020 censuses its population fell 6.8% (its boundary stayed at least 90% the same).
- People, ACS 2020-2024
- 3,630
- 2020 Census count
- 3,838−6.8% since 2010 (4,119)
- Households
- 1,434
- Median age
- 37.7
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 54479?
Of the 3,630 people the ACS estimates in 54479, 25.9% are under 18 and 17.9% are 65 or older. The largest group by race and Hispanic origin is White (not Hispanic) (94.6%).
- Under 1825.9%
- 18 to 6456.3%
- 65 and older17.9%
- White, not Hispanic94.6%
- Hispanic or Latino2.9%
- Other or two or more2.3%
- 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 54479 earn?
Median household income is $77,371 (ACS 2020-2024), the 2nd highest of the 18 ranked ZIP codes in Clark County. It is not measurably different from 2015-2019 ($77,248 in 2024 dollars): the change is within the surveys' margins of error.
- Median household income
- $77,371±$7,984
- Income per person
- $34,510
- Below the poverty line
- 5.0%
- Unemployed (of the labor force)
- 1.5%
- Adults 25+ with a bachelor's degree
- 15.8%
- Adjusted gross income per tax return, 2022
- $64,9391,810 returns; wages 72% 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 54479?
FHFA's house price index for 54479, built from repeat sales and appraisals of the same homes, rose 63% from 2015 to 2025 and rose 37% from 2020 to 2025, and moved −4.5% in 2025.
- Median home value (owners' estimate)
- $182,800
- Median gross rent
- $577
- Homes owned by their occupants
- 81.9%
- Housing units
- 1,494
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 54479?
90 business establishments had a location in this ZIP code in 2023, 8 more than in 2018; the most are in construction (ZIP Code Business Patterns).
- Construction17
- Manufacturing17
- Other services (except public administration)13
- Retail trade8
- Finance and insurance7
- Transportation and warehousing6
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 54479?
| ZIP | Town | People | Household income | Distance |
|---|---|---|---|---|
| 54488 | Unity | 1,275 | $64k | 6.4 mi |
| 54446 | Loyal | 3,500 | $74k | 6.6 mi |
| 54420 | Chili | 1,330 | $80k | 9.8 mi |
| 54449 | Marshfield | 26,183 | $68k | 10.2 mi |
| 54484 | Stratford | 5,529 | $72k | 12.7 mi |
| 54436 | Granton | 2,203 | $61k | 15.6 mi |
| 54421 | Colby | 3,468 | $61k | 10.2 mi (near) |
| 54441 | Hewitt | 791 | $92k | 13.4 mi (near) |
| 54437 | Greenwood | 3,236 | $67k | 14.7 mi (near) |
Source: PlainZIP from the Census 2020 ZCTA boundaries (shared edges) and internal points; figures ACS 2020-2024.