Residential delivery area · Wisconsin
ZIP Code 54858: Milltown, WI
ZIP code 54858 uses the postal name Milltown, Wisconsin and lies entirely in Polk County (Census 2020 ZIP-county file). About 1,600 people live there (Census Bureau, ACS 2020-2024). Median household income is $53,901 (Census Bureau, ACS 2020-2024). By Census place, 10% of its land lies in Milltown; 90% is outside any Census place.
- ACS2020-24
- Census2020
- FHFA2025
- ZBP2023
- IRS2022
- Town
- Milltown · its only residential ZIP
- County
- Polk County
- Census places
- Milltown
- House district
- WI-7 119th Congress
- State
- Wisconsin
- Time zone
- Central
- Land area
- 17.6 sq mi · 93 people per sq mi
Where is ZIP code 54858?
54858 centers on 45.519°, -92.458° and covers 17.6 square miles of land plus 0.5 of water. It borders 3 ZIP codes: 54853, 54824, 54810.
The map draws ZIP code areas only. For the streets inside 54858, 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 54858 compare with the rest of Polk County?
| Measure | 54858 | In Polk County | In WI |
|---|---|---|---|
| People (ACS 2020-2024) | 1,636 | 17th of 20 | 522nd of 783 |
| Median household income | $54k | 18th of 18 | 588th of 610 |
| Median home value | $213k | not ranked | not ranked |
54858's median home value is not ranked: its 90% margin of error (±$65,285) is more than a quarter of the figure ($213,100). Rankings use ZIP codes of 1,000 or more people living in households, with margins at most 25% of the figure.
Its median household income is higher than in 20% of U.S. residential ZIP codes, and it is denser than 53% 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 54858?
The 2020 Census counted 1,493 people in 54858; the ACS, which samples households over 2020-2024, estimates 1,636. Its boundary changed between the 2010 and 2020 censuses, so the two counts are not compared.
- People, ACS 2020-2024
- 1,636±186 (90% margin)
- 2020 Census count
- 1,493
- Households
- 769
- Median age
- 50.6
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 54858?
Of the 1,636 people the ACS estimates in 54858, 18.2% are under 18 and 26.0% are 65 or older. The largest group by race and Hispanic origin is White (not Hispanic) (93.3%).
- Under 1818.2%
- 18 to 6455.9%
- 65 and older26.0%
- White, not Hispanic93.3%
- Other or two or more4.3%
- Hispanic or Latino2.4%
- Black, not Hispanic0.0%
- 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 54858 earn?
Median household income is $53,901 (ACS 2020-2024), the 18th highest of the 18 ranked ZIP codes in Polk County.
- Median household income
- $53,901
- Income per person
- $30,235
- Below the poverty line
- 20.5%
- Unemployed (of the labor force)
- 4.1%
- Adults 25+ with a bachelor's degree
- 19.9%
- Adjusted gross income per tax return, 2022
- $59,721750 returns; wages 66% 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 54858?
FHFA's house price index for 54858, built from repeat sales and appraisals of the same homes, rose 89% from 2015 to 2025 and rose 61% from 2020 to 2025.
- Median home value (owners' estimate)
- $213,100
- Median gross rent
- $756
- Homes owned by their occupants
- 73.7%
- Housing units
- 1,019
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 54858?
42 business establishments had a location in this ZIP code in 2023, 2 fewer than in 2018; the most are in retail trade (ZIP Code Business Patterns).
- Retail trade6
- Construction5
- Accommodation and food services5
- Other services (except public administration)5
- Professional, scientific, and technical services4
- Administrative and support and waste management and remediation services4
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 54858?
| ZIP | Town | People | Household income | Distance |
|---|---|---|---|---|
| 54853 | Luck | 3,506 | $75k | 3.9 mi |
| 54824 | Centuria | 1,950 | $67k | 4.6 mi |
| 54810 | Balsam Lake | 2,849 | $70k | 5.5 mi |
| 54024 | Saint Croix Falls | 5,035 | $75k | 8.9 mi (near) |
| 54006 | Cushing | 852 | $70k | 10.4 mi (near) |
| 54837 | Frederic | 3,803 | $71k | 11.7 mi (near) |
| 54009 | Dresser | 2,739 | $90k | 12.9 mi (near) |
| 55084 | Taylors Falls, MN | 1,975 | $94k | 13.1 mi (near) |
Source: PlainZIP from the Census 2020 ZCTA boundaries (shared edges) and internal points; figures ACS 2020-2024.