54923 ZIP Code — Berlin, WI
Green Lake County, Wisconsin
ZIP code 54923 is located in Berlin, Wisconsin, within Green Lake County. It covers approximately 135.66 square miles and serves a population of 8,947 residents. This is a standard ZIP code in the Central (CT) timezone, served by area code 920.
About ZIP code 54923
The housing stock consists of predominantly single-family detached homes. Most homes were built in the pre-1940, giving the area an established character. Median home value is $168,400. Owner-occupancy sits near the national average at 74%.
Median household income is $65,369. 38% of households receive Social Security income, suggesting a notable retiree or disability population.
The dominant occupation class is management, business, and professional, with manufacturing as the leading industry. The average commute of 22 minutes is near the national average.
Educational attainment is near the national average, with 22% of residents holding a bachelor's degree or higher.
8,947
population
135.66
sq mi land
Standard
ZIP type
Central (CT)
timezone
54923 ZIP code map
Cities in ZIP code 54923
Below are the cities the US Postal Service accepts for ZIP code 54923. Using any city not on this list may result in mail delivery delays.
| City | Status |
|---|---|
| Berlin | Acceptable |
| Berlin | Preferred |
Nearby ZIP codes
54970 Redgranite (6.2 mi)
54967 Poy Sippi (8.2 mi)
54941 Green Lake (8.9 mi)
54965 Pine River (10.7 mi)
54963 Omro (11.4 mi)
54960 Neshkoro (12.1 mi)
54971 Ripon (12.4 mi)
54968 Princeton (13.2 mi)
54986 Winneconne (13.8 mi)
54982 Wautoma (15.1 mi)
54964 Pickett (15.1 mi)
54940 Fremont (15.7 mi)
Demographics
updated 05/2026
| Population | |
|---|---|
| Total population | 8,947 |
| Population density | 66 / sq mi |
| State FIPS | 55 |
| County FIPS | 047 |
| Geography | |
|---|---|
| Land area | 135.66 sq mi |
| Water area | 3.08 sq mi |
| Latitude | 44.0040 |
| Longitude | -88.9867 |
| Timezone | Central (CT) |
| Area code | 920 |
Total population by age
Gender
Race & ethnicity
Economics
updated 05/2026
Household income
| Income range | This ZIP | County avg | State avg |
|---|---|---|---|
| Under $50k | 41.0% | 42.3% | 39.4% |
| $50k – $100k | 38.2% | 35.0% | 33.0% |
| $100k – $200k | 17.6% | 19.2% | 22.4% |
| Over $200k | 3.3% | 3.5% | 5.2% |
Demographics & statistics
8,947
Population
66
People per sq mi
43.0
Median age
$65,369
Median household income
$32,898
Per capita income
$168,400
Median home value
$786
Median monthly rent
74.1%
Home ownership
11.9%
Poverty rate
2.6%
Unemployment
3,195
Housing units
21.7%
Bachelor's or higher
Age distribution
Male
Female
224
Under 5
210
267
5–9
250
353
10–14
332
281
15–19
265
250
20–24
235
496
25–34
466
539
35–44
507
617
45–54
579
350
55–59
329
398
60–64
375
480
65–74
452
231
75–84
218
125
85+
118
← Male
Female →
Age summary
| Group | Count | % |
|---|---|---|
| Under 18 | 1,964 | 22.0% |
| 18 and over | 6,983 | 78.0% |
| 65 and over | 1,624 | 18.2% |
| Median age | 43.0 years | |
Race & ethnicity
White
89.8%
Hispanic or Latino
3.2%
Two or more races
2.2%
Other race
2%
Asian
1.2%
Black or African American
0.8%
American Indian / Alaska Native
0.5%
Native Hawaiian / Pacific Islander
0.2%
| Group | Count | % |
|---|---|---|
| White | 8,300 | 89.8% |
| Hispanic or Latino | 293 | 3.2% |
| Two or more races | 204 | 2.2% |
| Other race | 187 | 2% |
| Asian | 114 | 1.2% |
| Black or African American | 72 | 0.8% |
| American Indian / Alaska Native | 49 | 0.5% |
| Native Hawaiian / Pacific Islander | 21 | 0.2% |
Household income
| Income range | This ZIP | County avg | State avg |
|---|---|---|---|
| Under $50k | 41.0% | 42.3% | 39.4% |
| $50k – $100k | 38.2% | 35.0% | 33.0% |
| $100k – $200k | 17.6% | 19.2% | 22.4% |
| Over $200k | 3.3% | 3.5% | 5.2% |
Under $10k
2.7%
$10k–$15k
1.8%
$15k–$25k
9.2%
$25k–$35k
11.8%
$35k–$50k
10.6%
$50k–$75k
21.2%
$75k–$100k
16.1%
$100k–$150k
17.3%
$150k–$200k
5.4%
$200k+
3.9%
| Range | % of households |
|---|---|
| Under $10k | 2.7% |
| $10k–$15k | 1.8% |
| $15k–$25k | 9.2% |
| $25k–$35k | 11.8% |
| $35k–$50k | 10.6% |
| $50k–$75k | 21.2% |
| $75k–$100k | 16.1% |
| $100k–$150k | 17.3% |
| $150k–$200k | 5.4% |
| $200k+ | 3.9% |
| Median income | $65,369 |
Housing
Home values
Under $50k
3.1%
$50k–$100k
14.3%
$100k–$150k
25.9%
$150k–$200k
18.0%
$200k–$300k
21.1%
$300k–$500k
14.5%
$500k–$1M
1.5%
$1M+
1.4%
Housing overview
| Metric | Value |
|---|---|
| Median home value | $168,400 |
| Median rent / month | $786 |
| Owner occupied | 74.1% |
| Renter occupied | 25.9% |
| Vacant | 10.0% |
| Single-family detached | 77.9% |
| Large apartment buildings | 4.7% |
| Mobile homes | 2.6% |
| Median rooms | 6.3 |
| Avg household size (owned) | 2.43 |
Year built
| Era | % |
|---|---|
| 2020 or later | 0.0% |
| 2010–2019 | 3.3% |
| 2000–2009 | 12.1% |
| 1990–1999 | 13.4% |
| 1980–1989 | 6.6% |
| 1970–1979 | 14.5% |
| 1960–1969 | 8.2% |
| 1950–1959 | 7.2% |
| 1940–1949 | 6.0% |
| 1939 or earlier | 28.7% |
Bedrooms
| Size | % of units |
|---|---|
| No bedroom (studio) | 3.1% |
| 1 bedroom | 5.6% |
| 2 bedrooms | 21.5% |
| 3 bedrooms | 43.3% |
| 4 bedrooms | 18.9% |
| 5+ bedrooms | 7.6% |
Vehicles per household
| Vehicles | % of households |
|---|---|
| No vehicle | 5.0% |
| 1 vehicle | 27.3% |
| 2 vehicles | 37.6% |
| 3 or more | 30.1% |
Heating fuel
| Fuel type | % |
|---|---|
| Utility gas | 55.3% |
| Electricity | 15.0% |
| Propane / LP gas | 22.1% |
| Fuel oil | 0.6% |
| Wood | 5.7% |
| Solar | 0.1% |
| No fuel used | 0.4% |
Households & families
| Household type | Count | % |
|---|---|---|
| Married-couple family | 1,826 | 48.7% |
| Cohabiting couple | 326 | 8.7% |
| Male householder, no spouse | 829 | 22.1% |
| Female householder, no spouse | 769 | 20.5% |
| Households with children under 18 | 1,062 | 28.3% |
| Households with seniors (65+) | 1,140 | 30.4% |
| Average household size | 2.36 | |
Marital status
| Status | Male | Female |
|---|---|---|
| Never married | 33.7% | 20.1% |
| Married | 51.1% | 51.5% |
| Separated | 0.8% | 0.8% |
| Widowed | 3.9% | 13.3% |
| Divorced | 10.5% | 14.3% |
Education
Less than 9th grade
1.5%
Some HS, no diploma
6.2%
HS graduate
40.1%
Some college, no degree
23.6%
Associate's degree
6.9%
Bachelor's degree
15.2%
Graduate / professional
6.5%
| Metric | % |
|---|---|
| HS diploma or higher | 92.3% |
| Bachelor's or higher | 21.7% |
School enrollment (ages 3–17)
| Type | Count | % |
|---|---|---|
| Nursery / preschool | 147 | 7.6% |
| Kindergarten | 67 | 3.5% |
| Elementary school | 988 | 51.4% |
| High school | 453 | 23.6% |
| College / grad school | 267 | 13.9% |
Employment
Industry of employment
Manufacturing
27.1%
Education & healthcare
18.2%
Retail trade
15.6%
Construction
7.0%
Professional & management
6.0%
Arts, food & hospitality
5.6%
Public administration
5.3%
Finance & real estate
4.1%
Transportation & utilities
3.5%
Other services
2.8%
Wholesale trade
2.5%
Agriculture & mining
2.3%
Information
0.1%
Occupation
| Category | % |
|---|---|
| Management, business & arts | 28.5% |
| Service | 13.0% |
| Sales & office | 18.8% |
| Natural resources & construction | 13.5% |
| Production & transportation | 26.2% |
Employment type
| Type | % |
|---|---|
| Private sector | 82.4% |
| Government | 12.5% |
| Self-employed | 5.1% |
| Unpaid family workers | 0.0% |
Commute
| Method | % |
|---|---|
| Drive alone | 81.9% |
| Carpool | 7.1% |
| Public transit | 0.6% |
| Walk | 2.8% |
| Work from home | 6.3% |
| Other means | 1.3% |
| Avg commute (minutes) | 22.0 |
Poverty
All people
11.9%
Under 18 years
18.5%
18 and over
10.1%
Married-couple families
2.5%
Female-led households
24.9%
Income support
| Source | % of households |
|---|---|
| Social Security | 38.2% |
| Retirement income | 26.1% |
| Supplemental Security | 4.1% |
| Cash public assistance | 3.1% |
| Food stamps / SNAP | 14.5% |
Health indicators
| Condition | % |
|---|---|
| Obesity | 36.7% |
| High blood pressure | 33.7% |
| High cholesterol | 34.5% |
| Diabetes | 10.4% |
| Heart disease | 7.1% |
| Stroke | 3.4% |
| Asthma | 9.9% |
| Arthritis | 26.8% |
| Kidney disease | 3.2% |
| Pulmonary disease | 7.5% |
| Cancer | 7.3% |
| Behavior / access | % |
|---|---|
| Smoking | 19.6% |
| Binge drinking | 22.6% |
| No physical activity | 23.0% |
| Less than 7 hrs sleep | 31.2% |
| Depression | 20.5% |
| Fair or poor health | 14.4% |
| Poor mental health | 13.8% |
| Poor physical health | 11.3% |
| No health insurance | 11.8% |
| Visited doctor (checkup) | 74.9% |
| Visited dentist | 65.6% |
| Cholesterol screening | 87.0% |
| Teeth loss | 14.6% |
Veterans & disability
| Veterans | Count | % |
|---|---|---|
| Civilian veterans | 677 | 9.7% |
| Disability | % |
|---|---|
| Any disability | 16.0% |
| Under 18 | 7.2% |
| 18–64 years | 13.1% |
| 65 and over | 36.5% |
Health insurance coverage
| Type | % |
|---|---|
| Private insurance | 71.9% |
| Public insurance | 39.0% |
| No insurance | 4.7% |
| Uninsured under 19 | 1.5% |
Language & origin
Language spoken at home (age 5+)
| Language | Count | % |
|---|---|---|
| English only | 8,513 | 95.1% |
| Spanish | 167 | 2.0% |
| Other Indo-European | 133 | 1.6% |
| Asian & Pacific Islander | 34 | 0.4% |
| Other languages | 0 | 0.0% |
Place of birth & citizenship
| Origin | Count | % |
|---|---|---|
| Native born (US) | 8,725 | 97.5% |
| Born in same state | 8,597 | 96.1% |
| Born in different state | 7,328 | 81.9% |
| Foreign born | 128 | 1.4% |
| Naturalized citizen | 222 | 2.5% |
| Not a US citizen | 103 | 46.4% |
Ancestry
| Ancestry | Count | % |
|---|---|---|
| Italian | 994 | 11.1% |
| French | 634 | 7.1% |
| Arab | 317 | 3.5% |
| Polish | 304 | 3.4% |
| English | 248 | 2.8% |
| Ancestry | Count | % |
|---|---|---|
| German | 64 | 0.7% |
| Dutch | 57 | 0.6% |
| Irish | 30 | 0.3% |
| Norwegian | 1 | 0% |
Technology access
| Metric | % of households |
|---|---|
| Computer access | 41.9% |
| Internet access | 91.5% |
Source: U.S. Census Bureau, American Community Survey 2025 estimates.
Frequently asked questions about ZIP code 54923
What city is ZIP code 54923 in?
ZIP code 54923 is primarily assigned to Berlin, Wisconsin.
What county is ZIP code 54923 in?
ZIP code 54923 falls within Green Lake County, Wisconsin.
Does ZIP code 54923 have a large retiree population?
38% of households in ZIP code 54923 receive Social Security income, suggesting a significant retiree or disability population.
Does ZIP code 54923 have a large veteran population?
10% of civilians in ZIP code 54923 are veterans, above the national average of ~7%.
What is the typical home value in ZIP code 54923?
The median home value in ZIP code 54923 is $168,400.
What is the population of ZIP code 54923?
ZIP code 54923 has an estimated population of 8,947 residents, with a density of 66 people per square mile.
What timezone is ZIP code 54923 in?
ZIP code 54923 observes the CST timezone.