US ZIP Code
54423

Custer, WI

Portage County  ·  Wisconsin

● Active
👥 2,235 Population ↓ 5% since 2019
💰 $116,941 Median HH Income
▲ 53% above avg ↑ 35% since 2019
🎂 51.1 Median Age ↑ 17% since 2019
🏠 $290,700 Median Home Value
≈ Avg ↑ 28% since 2019
🎓 48.4% College Grads
▲ 25% above avg
📊 0.6% Unemployment
▼ 88% below avg ↓ 81% since 2019
ZIP Code Details
ZIP Code54423
CityCuster
StateWisconsin (WI)
CountyPortage County
Area Code715
Elevation1,183 ft
Latitude44.578892
Longitude-89.425918
TimezoneChicago (DST)
FIPS55097
ZIP TypeStandard
StatusActive
People & Population (ACS 2023)
♂ Male 55.5% (1,241) Female 44.5% (994) ♀

Race & Ethnicity

White: 99.1%Hispanic: 0.3%Asian: 0.3%Other: 0.4%Race
White99.1%
Hispanic0.3%
Asian0.3%
Other0.4%

Age Breakdown

Under 5
3%
5–17
15%
18–24
6%
25–44
20%
45–64
37%
65+
9%

Key Indicators

Median Age51.1 yrs ↑ 17% since 2019
Avg Household Size2.63
Below Poverty2.2% ▼ 79% below avg
College Grads48.4% ▲ 25% above avg
Unemployment0.6% ▼ 88% below avg
HS Graduate633 (38.5%)
Some College83 (5%)
Associates134 (8.1%)
Bachelors253 (15.4%)
Graduate Degree543 (33%)

Education

HS Grad: 38.5%Some College: 5%Associates: 8.1%Bachelors: 15.4%Graduate: 33%Edu
HS Grad38.5%
Some College5.0%
Associates8.1%
Bachelors15.4%
Graduate33.0%
Housing & Income

Housing Tenure

Owner: 95.6%Renter: 4.4%Tenure
Owner95.6%
Renter4.4%

Home Value Distribution

Under $50k
1%
$50k–100k
2%
$100k–150k
3%
$150k–200k
13%
$200k–300k
34%
$300k–500k
28%
Over $500k
18%

Financials

Median HH Income$116,941 ▲ 53% above avg ↑ 35% since 2019
Median Home Value$290,700 ≈ Avg ↑ 28% since 2019
Home/Income Ratio2.5x (nat avg ~3.5x)
Median Rent$789/mo ↑ 11% since 2019
Total Units894
Vacant Units45
Avg HH Size2.63

Income Distribution

Under $25k
6%
$25k–50k
7%
$50k–75k
15%
$75k–100k
13%
$100k–150k
26%
$150k–200k
25%
Over $200k
8%
Employment & Commute

How People Get to Work

Drove Alone
81%
Walked
2%
Work From Home
16%

Commute Time

Under 15 min
15%
15–30 min
53%
30–45 min
16%
Over 45 min
16%
Housing Stock

Year Built

Before 1940
1%
1940s–1950s
5%
1960s–1970s
13%
1980s–1990s
25%
2000+
57%

Summary

Total Units894
Vacant45
Owner Occupied95.6%
Renter Occupied4.4%
Avg HH Size2.63
Frequently Asked Questions
ZIP code 54423 is in Custer, WI, in Portage County.
ZIP code 54423 is located in Wisconsin (WI).
ZIP code 54423 is in Portage County, WI.
ZIP 54423 observes the Chicago timezone. Daylight Saving Time is observed.
The estimated population of ZIP code 54423 is 2,235 people (ACS 2023).
The median household income in ZIP code 54423 is $116,941 (ACS 2023).
The median home value in ZIP 54423 is $290,700 (ACS 2023).
About ZIP Code 54423

ZIP code 54423 is located in Custer, Wisconsin, within Portage County. With a population of 2,235, this is a sparsely populated ZIP code with a mature community — the median age is 51.1 years. Economically, 54423 is a upper-middle-income ZIP code: the median household income of $116,941 is significantly above the national average.

Real estate in ZIP code 54423 represents a mid-range housing market. The median home value of $290,700 is near the national average. Renters can expect to pay around $789 per month in median rent. Homeownership is strong here — 95.6% of occupied units are owner-occupied, suggesting an established, stable residential community. Median home values have increased by 28% since 2019.

The population of 54423 is primarily White (99.11%). Residents are well-educated — 48.4% hold a bachelor's degree or higher, which is above the national average. Poverty affects a relatively small share of residents at 2.2%. Household income has grown by 35% since 2019.

The unemployment rate in 54423 stands at 0.6%, which is well below the national average. About 15% of workers are remote. As in most parts of the country, driving alone is the dominant commute mode at 77%.

Overall, ZIP code 54423 in Custer, WI is characterized as upper-middle-income, well-educated, a mature community, and predominantly owner-occupied. With 2,235 residents, a median household income of $116,941, and a median home value of $290,700, it offers a clear picture of life in this part of Wisconsin.