ZIP Code 53931 in Fairwater, WI

Data Last Updated: March 1, 2026
City:Fairwater, Wisconsin
County:Fond Du Lac County
Timezone:Central (GMT -06:00)
Local Time:7:27:49 AM
Population:346 [See All]
Area Codes:274 / 920
Classification:PO Box
Coordinates:43.7321, -88.8653
Land Area:0.735 sq mi
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53931 Fairwater, WI - PO Box Only Rural Community

ZIP Code 53931, Fairwater

Small Town
LocationFond Du Lac County, WI
Area0.8 sq mi
Population346
Households146
PO Boxes132 (90% adoption)
Median Age42.0 years
ZIP CreatedBefore Oct 2004
Key Facts
  • This is a PO Box Only Zone and there's no alternative mail delivery across the 0.81 square mile territory
  • With 132 PO Boxes serving 146 households, 90% of the community relies exclusively on PO Box mail service
  • The post office operates two rural carrier routes that extend from the village center into surrounding countryside
  • Transportation and warehousing employs 148 workers, suggesting a major distribution or logistics facility serves the region from this small town
  • 81% of homes are owner-occupied, with a median household income of $81,667, above typical rural Wisconsin levels
  • The housing stock is historic, with 144 units built before 1939, reflecting Fairwater's long-established character

Community Overview

Fairwater is a small rural community in Fond du Lac County, Wisconsin, where all 346 residents receive mail exclusively through PO Boxes. This is a PO Box Only Zone, meaning there's no alternative mail delivery across the entire 0.81 square mile territory. Street delivery doesn't exist here. The post office maintains 132 PO Boxes serving 146 households, resulting in a 90% adoption rate that indicates near-universal reliance on box service.

Postal Services and Delivery Pattern

The village combines a compact downtown with surrounding rural routes. Main Street (14 delivery points) and Church Street (5 points) form the core, with several streets containing apartment units. Rural carrier routes extend into the countryside, serving homes on Mary Lane, Grand Woods Circle, and along State Road 44. Two distinct rural routes handle mail for addresses outside the immediate village center.

Housing and Demographics

Fairwater's 346 residents live in a predominantly owner-occupied community. Of 146 households, 118 (81%) are owner-occupied, while 28 are rentals. Median household income stands at $81,667, well above Wisconsin's working-class rural average. The median age of 42 suggests a stable, middle-aged population rather than a retirement or college town. Only 1 of 159 total housing units is marked for seasonal use.

Economic Profile

The economy shows unusual diversity for a town this size. Public administration employs 27 workers, while transportation and warehousing accounts for a striking 148 workers in the local workforce. This suggests the presence of a distribution facility or trucking operation serving the region. Federal government workers number 10. Meanwhile, 23% of workers report working from home, higher than typical for rural Wisconsin.

Local Character

Demographically, Fairwater is 96% White (333 of 346 residents), with 38 Hispanic or Latino residents (11%). Educational attainment is modest: just 14.2% of adults hold a bachelor's degree or higher. The housing stock is old, with 144 of the area's units built before 1939. Median home value sits at $130,200, and median rent at $1,100 monthly.

Mailing to Fairwater

All mail to Fairwater addresses must use PO Box format. The ZIP code is 53931. Street addresses are not valid for mail delivery in this community.

Street Name Patterns

Traditional Town Names Compact Downtown

Traditional small-town street names (Main, Church, Elm) concentrated in compact village center with rural routes extending outward.

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Population & Demographics


ZIP Code 53931 has 346 residents and 146 households (average 2.37 persons per household). The median age is 42.0 years, slightly older than the state (40.1) and older than the nation (38.8). The gender split is 52.0% male and 48.0% female, which is slightly higher than the national male share (49.1%), making this a male-majority area. Largest groups are White (96.2%, much higher than the state average of 80.4% and well above the national average of 61.6%) and Hispanic or Latino (2.9%); Hispanic or Latino residents make up 2.9%, which is much lower than the national average (18.7%).

Explore More:Population Over TimeBy Age & GenderBy RaceBy GenderNativity & Citizenship

Source: U.S. Census 2020 Demographics & Housing Characteristics (DHC) and U.S. Census 2011-2024 American Community Survey (ACS) 5-Year Estimates.
2020 Population:346Source: Census DHC
2024 ACS Population Estimate:350Source: Census ACS
2026 ZC Population Estimate:0Source: ZIP-Codes.com
Population Density:470.7 people per sq mile
Average Income:$71,250Source: Census ACS
Households:146Source: Census DHC
Average House Value:$145,800Source: Census ACS
Persons Per Household:2.37Source: Census DHC
Average Family Size:2.80Source: Census ACS

Population Over Time (with 2010 & 2020 Census Benchmarks)


Group201020112102201320142015201620172018201920202021202220232024
Census ACS Population Estimate--240280229254229240235253220232353339368350
Decennial Census237------------------346--------
Source: U.S. Census 2011-2024 American Community Survey 5-Year Estimates. DP05. DEMOGRAPHIC AND HOUSING ESTIMATES

Population by Age & Gender (Total, Male, Female)


Median Age: 42

Male Median Age: 45

Female Median Age: 41.4

Group< 55-910-1415-1920-2425-2930-3435-3940-4445-4950-5455-5960-6465-6970-7475-7980-8485+
Male71671757910121515817197801
Female11136136791410711161588345
Total1829133011141824222226243227151146
Source: U.S. Census Bureau (2020) Demographics & Housing Characteristics (DHC)

Population by Race


White:33395.14%
Black:30.86%
Hispanic:*102.86%
Asian:00%
American Indian:00%
Hawaiian:00%
Other:41.14%
Total:350100%
Source: U.S. Census Bureau (2020) Demographics & Housing Characteristics (DHC)
* NOTE: Hispanic or Latino is an ethnicity, not a race. This means individuals who identify as Hispanic will also be included in one of the race categories (such as White or Black). As a result, the totals shown here may exceed 100% when Hispanic is displayed alongside racial groups.

Gender Breakdown


GenderCount%Median Age
Males:18052.02%45.0 years
Females:16647.98%41.4 years
Total:346100%42.0 years
Source: U.S. Census Bureau (2020) Demographics & Housing Characteristics (DHC)

Nativity & Citizenship


Native, born in the United States:33796.29%
Native, born in PR, Island Areas, or abroad:51.43%
Foreign born, naturalized U.S. citizen:61.71%
Foreign born, not a U.S. citizen:22.29%
Total Population:350100%
Total Native Population:34297.71%
Total Foreign-born Population:82.29%
Source: U.S. Census 2020-2024 American Community Survey 5-Year Estimates. Table DP02. SELECTED SOCIAL CHARACTERISTICS
Note: Nativity and Citizenship derived from American Community Survey (ACS) 5-year estimates. Total Population listed here will not match official ZIP Code population totals, which are based on the Decennial Census.

Income & Employment


In 2024, the Median household income is $71,250, which is far less than the national median ($80,734), is up $17,361 (32.2%) since 2011 and above its 2019 pre-pandemic level by $1,500. Family households earn a median of $94,286 versus $0 for nonfamily households (a difference of $94,286). By gender, male median income is $62,500 and female is $42,500, which is well under the national female median ($55,274), with a current gap of $20,000 that has widened from 2011 to 2024. The labor-force participation rate is 75.2%, which is much higher than the national rate (63.5%). The unemployment rate is 0.5%, which is markedly below the national rate (5.2%). The largest occupation group is Production (42.0%).

Explore More:Income Over TimeHousehold IncomeEmployment StatusBy Occupation

Source: U.S. Census 2011-2024 American Community Survey 5-Year Estimates. Using data from Tables DP02, DP03, DP04 and DP05.

Median Income Over Time (Household, Family, Nonfamily, Male, Female)


Income Type20112012201320142015201620172018201920202021202220232024
Median Household Income$53,889$55,000$55,938$56,316$56,563$61,250$66,364$67,500$69,750$75,625$63,594$67,083$81,667$71,250
Median Family Income$50,000$56,042$56,500$57,344$67,917$63,750$90,500$95,000$92,500$91,250$86,667$93,750$92,292$94,286
Median NonFamily Income$30,000$33,036$33,125$45,250$34,063$46,000$55,500$50,625$58,438$54,821$55,114$0$0$0
Median Male Income$41,250$40,417$39,063$38,472$38,875$37,143$39,519$42,159$53,182$54,464$56,875$65,625$66,563$62,500
Median Female Income$35,278$35,547$38,000$38,021$33,125$37,500$33,750$40,000$37,083$40,000$42,500$43,125$43,750$42,500
Source: U.S. Census 2011-2024 American Community Survey 5-Year Estimates. DP03. SELECTED ECONOMIC CHARACTERISTICS

Average Household Income


Source: U.S. Census 2020-2024 American Community Survey 5-Year Estimates. Table DP03. SELECTED ECONOMIC CHARACTERISTICS

Employment Status


Employed:18174.79%
Unemployed:10.41%
Not In Labor Force:6024.79%
Total:242100%
Source: U.S. Census 2020-2024 American Community Survey 5-Year Estimates. Table DP03. SELECTED ECONOMIC CHARACTERISTICS

Employment by Occupation (Civilian Employed Population, 16 and Over)


Management, business, science, and arts:4524.86%
Service:1910.50%
Sales and Office:2413.26%
Natural resources, construction, and maintenance:179.39%
Production, transportation, and material moving:7641.99%
Total Civilian Employed Population:181100%
Source: U.S. Census 2020-2024 American Community Survey 5-Year Estimates. Table DP03. SELECTED ECONOMIC CHARACTERISTICS.

Housing & Affordability


In 2024, the median home value is $145,800, which is well under the national median ($332,700), is up $50,800 (53.47%) since 2011 and above its 2019 pre-pandemic level by $40,000. The median gross rent is $988, which is well under the national median ($1,413), is up $288 (41.14%) since 2011 and above its 2019 pre-pandemic level by $225. Of occupied housing, owners make up 81.06% (62.62% with a mortgage, 37.38% free-and-clear) and renters 18.94% - making this ZIP Code under national rental averages. The vacancy rate is 11.41%, which is markedly above the national rate (10.12%).

Explore More:Compare Home ValueHome Value Over TimeRent & Over TimeHousing Occupancy

Source: U.S. Census 2011-2024 American Community Survey 5-Year Estimates. Using data from Table DP03, SELECTED ECONOMIC CHARACTERISTICS.

Median Home Value (Comparison)


Source: U.S. Census 2020-2024 American Community Survey 5-Year Estimates. Table DP04. SELECTED HOUSING CHARACTERISTICS

Median Home Value Over Time


Group20112102201320142015201620172018201920202021202220232024
Median Home Value$95,000$104,800$119,200$121,200$117,500$113,800$108,900$101,000$105,800$124,000$102,800$119,000$130,200$145,800
Source: U.S. Census 2011-2024 American Community Survey 5-Year Estimates. DP04. SELECTED HOUSING CHARACTERISTICS

Gross Rent Paid


Less than $500:00.00%
$500 to $999:1040.00%
$1,000 to $1,499:832.00%
$1,500 to $1,999:00.00%
$2,000 to $2,499:00.00%
$2,500 to $2,999:00.00%
$3,000 or more:00.00%
No Rent:728.00%
Total:25100%
Source: U.S. Census 2020-2024 American Community Survey 5-Year Estimates. Table DP04. SELECTED HOUSING CHARACTERISTICS

Median Gross Rent Over Time


Group20112102201320142015201620172018201920202021202220232024
Median Rent$700$710$760$694$630$710$733$773$763$850$907$965$1,100$988
Source: U.S. Census 2011-2024 American Community Survey 5-Year Estimates. DP04. SELECTED HOUSING CHARACTERISTICS

Housing Occupancy


Owner Occupied (with mortgage):6750.76%
Owner Occupied (free and clear, no mortgage):4030.30%
Renter Occupied:2518.94%
Total Occupied Housing Units:132100%

Occupied Housing Units:13288.59%
Vacant Housing Units (not graphed):1711.41%
Total Housing Units:149100%
Source: U.S. Census 2020-2024 American Community Survey 5-Year Estimates. Table DP04. SELECTED HOUSING CHARACTERISTICS

Housing Type (Single-Family, Multi-Family, Other)


Single-Family Units:12382.55%
Multi-Family Units:2013.42%
Other Units:64.03%
Total Housing Units:149100%
Source: U.S. Census 2020-2024 American Community Survey 5-Year Estimates. Table DP04. SELECTED HOUSING CHARACTERISTICS

Education, Health & Community


In 2024, 14.10% of adults (25+) have a bachelor's degree or higher, which is far lower than the national rate (35.70%). High school or higher is 87.30%, which is comparable to the national rate (89.60%). The uninsured rate is 0.90%, which is far lower than the national rate (8.40%). The share of people in poverty is 10.60%, which is comparable to the national rate (8.80%), up 11.10 percentage points since 2011 and above its 2019 pre-pandemic level by 2.20 percentage points. This signals a sharp increase in hardship - a shrinking consumer base, heavy pressure on public services, and job-market contraction risks. Among residents ages 3+, the largest enrollment group is elementary (68.75%). College enrollment is 14.58%, which is far lower than the national rate (26.70%), indicating the community may be more oriented toward vocational/trade or direct-to-workforce opportunities.

Explore More:Educational AttainmentHealth InsurancePoverty Over TimeSchool Enrollment

Source: U.S. Census 2011-2024 American Community Survey 5-Year Estimates. Using data from Tables DP02 and DP03.

Educational Attainment of Adults (25 and Older)


Less than 9th grade:167.27%
9th to 12th grade, no diploma:125.45%
High school graduate (includes equivalency):9543.18%
Some college, no degree:3817.27%
Associate's degree:2812.73%
Bachelor's degree:198.64%
Graduate or professional degree:125.45%
Total:220100%
High school or higher:19287.27%
Bachelor's degree or higher:3114.09%
Source: U.S. Census 2020-2024 American Community Survey 5-Year Estimates. Table DP02. SELECTED SOCIAL CHARACTERISTICS

Health Insurance Coverage by Type (Private, Public, Uninsured)


Private Insurance:29272.10%
Public Insurance:11027.16%
No Insurance:30.74%
Total:405100%
Has Health Insurance:40299.26%
Source: U.S. Census 2020-2024 American Community Survey 5-Year Estimates. Table DP03. SELECTED ECONOMIC CHARACTERISTICS

Percentage of People in Poverty Over Time (2011-2024)


Group20112102201320142015201620172018201920202021202220232024
% of People in Poverty2.6%1.2%1.4%2.8%1.6%6.1%7.1%10.7%11.5%21.4%15.2%14.3%13.7%10.6%
Source: U.S. Census 2011-2024 American Community Survey 5-Year Estimates. DP03. SELECTED ECONOMIC CHARACTERISTICS

Note: Counts of Families & People in poverty are not published at the ZIP Code level due to small sample sizes. Percentages shown are survey estimates from the American Community Survey (ACS). They may differ from official poverty statistics. The U.S. Census Bureau defines poverty status by comparing a family's or individual's total income with federal poverty thresholds that vary by family size and composition.

School Enrollment by Education Level (Ages 3 and Older)


Nursery School, Preschool:33.13%
Kindergarten:44.17%
Elementary school (grades 1-8):6668.75%
High school (grades 9-12):99.38%
College or graduate school:1414.58%
Total:96100%
Early Childhood:77.29%
K-12 (Primary & Secondary School):7982.29%
Source: U.S. Census 2020-2024 American Community Survey 5-Year Estimates. Table DP02. SELECTED SOCIAL CHARACTERISTICS

Business & Employment Statistics


ZIP Code 53931 supports both business and residential activity. According to the Business Census (2024), there are 9 business establishments, employing about 152 people with an annual payroll of $9,336,000.

# Residential Mailboxes:0Source: USPS
# Business Mailboxes:0Source: USPS
Total Delivery Receptacles:142Source: USPS
Single Family Delivery Units:0Source: USPS
Multi Family Delivery Units:0Source: USPS
# of Businesses:9Source: CBP
1st Quarter Payroll:$1,724,000Source: CBP
Annual Payroll:$9,336,000Source: CBP
# of Employees:152Source: CBP

Geography, Land Area, & Statistical Classifications


ZIP Code 53931 is located in Fond Du Lac County, Wisconsin, within the Fond du Lac, WI Metropolitan Statistical Area (CBSA 22540) and Wisconsin's 6th Congressional District. This Metro area has a population of 101,633 people, about 0.34% of whom live in ZIP Code 53931. It covers 0.735 sq mi of land and a water area of 0.018 sq mi.

CBSA Name:Fond du Lac, WISource: Census
CBSA Number:22540Source: Census
CBSA Type:MetroSource: Census
CBSA Division:--Source: Census
CBSA Population:101,633Source: Census
MSA:Source: Census
Land Area:0.735 sq miSource: Census
Water Area:0.018 sq miSource: Census
Congressional District:06Source: USPS
Congressional Land Area:4918.39 sq miSource: Census
PMSA:Source: Census
Intro Date:< 2004-10Source: ZIP-Codes.com
Place FIPS Code:5525075Source: Census
Place Name:Fairwater village; WisconsinSource: Census

Adjacent & Nearby ZIP Codes


53932 | | 53930

Schools in ZIP Code 53931


We could not locate which school district 53931 belongs to, but we will update this once new district data is released. There are no public schools nor private schools with a mailing address in this ZIP Code. Listing Nearby schools instead. It also has 6 colleges, universities or post secondary education institutions nearby which would be a short commute to.

Brandon Elementary 200 W Bowen St
Brandon, WI 53919
District: Rosendale-Brandon School DistrictNearby
Markesan High 100 E Vista Blvd
Markesan, WI 53946
District: Markesan School DistrictNearby
Markesan Middle 100 E Vista Blvd
Markesan, WI 53946
District: Markesan School DistrictNearby
Markesan Primary 200 S Margaret St
Markesan, WI 53946
District: Markesan School DistrictNearby
Markesan Intermediate 200 S Margaret St
Markesan, WI 53946
District: Markesan School DistrictNearby
Peace Lutheran School 435 Walker Ave
Green Lake, WI 54941
District: Private SchoolNearby
Faith Lutheran School N1529 State Road 73
Markesan, WI 53946
District: Private SchoolNearby
St John's Lutheran School 110 Edgelawn Dr
Fox Lake, WI 53933
District: Private SchoolNearby

Colleges & Post Secondary Schools near ZIP Code 53931


Ripon College 300 West Seward Street
Ripon, WI 54971-0248
Type: Post Secondary
Advanced College Of Cosmetology 25 West Main Street
Waupun, WI 53963-0000
Type: Post Secondary
Marian University 45 S National Ave
Fond Du Lac, WI 54935-4699
Type: Post Secondary
Moraine Park Technical College 235 N National Avenue
Fond Du Lac, WI 54936-1940
Type: Post Secondary
University Of Wisconsin-Oshkosh 800 Algoma Blvd
Oshkosh, WI 54901
Type: Post Secondary
Maranatha Baptist University 745 West Main Street
Watertown, WI 53094
Type: Post Secondary

Sources & References


Our sources include trusted federal and licensed data from the United States Postal Service, U.S. Census Bureau, U.S. Geological Survey, Centers for Medicare & Medicaid Services, and the National Center for Education Statistics, along with proprietary datasets created by ZIP-Codes.com. Data last updated on March 1, 2026.

  1. U.S. Postal Service [Last Updated: 3/1/2026], https://www.usps.com
  2. ZIP-Codes.com Proprietary Data Enhancements [Updated: 3/1/2026], https://www.zip-codes.com
  3. U.S. Census [Updated: Varies], https://www.census.gov
    • U.S. Census Office of Management and Budget [Updated: As Released]
    • U.S. Census 2020 Demographic & Housing Characteristics (DHC) [Decennial] [Updated: 5/25/2023]
    • U.S. Census 2011-2024 American Community Survey 5-year estimates (ACS) [Annually] [Updated: Annually, As Released]
    • U.S. Census Business Patterns (CBD) [Annually] [Updated: Annually, As Released]
    • U.S. Census American National Standards Institute (ANSI) [Updated: As Released]
  4. U.S. Geological Survey [Updated: Varies], https://www.usgs.gov
  5. Centers for Medicare & Medicaid Services [Updated: Annually, As Released], https://www.cms.gov
  6. National Center for Education Statistics [Updated: 3/1/2026], https://nces.ed.gov