ZIP code 54421: Colby, WI
54421 is a ZIP code in Colby, Wisconsin, mainly in Marathon County, part of the Wausau, WI metro area. About 3,468 people live here.
- Population
- 3,468
- Median household income
- $60,820
- Typical home value
- $222,900+9.8% in 12 months
- Median rent
- $844gross, per month
- Median age
- 36.8
- Homeowners
- 68.3%of occupied homes
Shaded: ZIP code 54421's area. Click anywhere on the map to see which ZIP code it's in.
ZIP codes within 10 milesWithin 25 miles
ZIP code 54421 details
| City | Colby |
|---|---|
| State | Wisconsin |
| County | Marathon County (also partly Clark County) |
| Metro area | Wausau, WI |
| Time zone | Central Time (UTC−6), observes daylight saving time |
| Type | Standard (delivery area) |
| Land area | 69.9 sq mi, plus 0.1 sq mi of water |
| Population density | 50 people per sq mi |
| Bachelor's degree or higher | 13.9% of adults 25+ |
| Average commute | 18.7 minutes |
| Center coordinates | 44.89519, -90.28869 |
Median rent in 54421 by bedrooms
| Size | Median gross rent |
|---|---|
| Studio | $2,233/mo |
| 1 bedroom | $719/mo |
| 2 bedrooms | $808/mo |
| 3 bedrooms | $879/mo |
| 4 bedrooms | $1,088/mo |
| 5+ bedrooms | $789/mo |
Gross rent includes utilities paid by the tenant. ACS 2020–2024; sizes with too few rentals to estimate are left out.
ZIP codes near 54421
| ZIP code | City | Distance | Population |
|---|---|---|---|
| 54488 | Unity, WI | 4.6 mi | 1,275 |
| 54405 | Abbotsford, WI | 5.0 mi | 2,770 |
| 54425 | Dorchester, WI | 8.1 mi | 1,988 |
| 54422 | Curtiss, WI | 9.5 mi | 1,553 |
| 54479 | Spencer, WI | 10.2 mi | 3,630 |
| 54480 | Stetsonville, WI | 11.0 mi | 1,386 |
| 54484 | Stratford, WI | 12.1 mi | 5,529 |
| 54460 | Owen, WI | 12.6 mi | 2,620 |
Population and median household income: ACS 2020–2024 5-year estimates. Typical home value: Zillow Home Value Index (September 2026) where available, otherwise the ACS median owner-reported value. "PO Box" marks ZIP codes with no delivery area of their own. Methodology
Buying a home in 54421?
A typical home in ZIP code 54421 is worth about $222,900 (Zillow Home Value Index). The median household here earns $60,820 a year. See what buying here would cost per month, with Wisconsin average taxes and insurance filled in.
Monthly payment for a $222,900 homeWhat can a $60,820 income afford?Rental property numbers
About ZIP code 54421
What city is ZIP code 54421?
ZIP code 54421 is in Colby, WI, in Marathon County.
What county is ZIP code 54421 in?
54421 is mainly in Marathon County, Wisconsin, and partly in Clark County.
What is the population of ZIP code 54421?
About 3,468 people live in ZIP code 54421, according to the American Community Survey 2020–2024 5-year estimates.
What time zone is ZIP code 54421 in?
54421 is in Central Time (UTC−6). It observes daylight saving time.