52228 ZIP Code — Fairfax, IA
Linn County, Iowa
ZIP code 52228 is located in Fairfax, Iowa, within Linn County. It covers approximately 37.25 square miles and serves a population of 3,656 residents. This is a standard ZIP code in the Central (CT) timezone, served by area code 319.
About ZIP code 52228
The housing stock consists of predominantly single-family detached homes. Most homes were built in the 2000s, giving the area an established character. Median home value is $283,600. Owner-occupancy is high at 90%, well above the national average.
The gap between median ($125,352) and mean household income suggests income inequality — a small number of higher earners pull the average up.
The dominant occupation class is management, business, and professional, with education and healthcare as the leading industry. The average commute of 21 minutes is near the national average.
Educational attainment is near the national average, with 44% of residents holding a bachelor's degree or higher.
3,656
population
37.25
sq mi land
Standard
ZIP type
Central (CT)
timezone
52228 ZIP code map
Cities in ZIP code 52228
Below are the cities the US Postal Service accepts for ZIP code 52228. Using any city not on this list may result in mail delivery delays.
| City | Status |
|---|---|
| Fairfax | Preferred |
Nearby ZIP codes
52351 Walford (2.7 mi)
52404 Cedar Rapids (4.3 mi)
52318 Norway (5.3 mi)
52405 Cedar Rapids (6.5 mi)
52338 Swisher (6.6 mi)
52203 Amana (6.8 mi)
52206 Atkins (7.9 mi)
52204 Amana (8 mi)
52401 Cedar Rapids (8.6 mi)
52354 Watkins (10.4 mi)
52497 Cedar Rapids (10.6 mi)
52499 Cedar Rapids (10.6 mi)
Demographics
updated 05/2026
| Population | |
|---|---|
| Total population | 3,656 |
| Population density | 98 / sq mi |
| State FIPS | 19 |
| County FIPS | 113 |
| Geography | |
|---|---|
| Land area | 37.25 sq mi |
| Water area | 0.03 sq mi |
| Latitude | 41.8984 |
| Longitude | -91.7883 |
| Timezone | Central (CT) |
| Area code | 319 |
Total population by age
Gender
Race & ethnicity
Economics
updated 05/2026
Household income
| Income range | This ZIP | County avg | State avg |
|---|---|---|---|
| Under $50k | 13.8% | 36.3% | 40.1% |
| $50k – $100k | 30.7% | 33.7% | 33.4% |
| $100k – $200k | 38.5% | 23.6% | 21.5% |
| Over $200k | 16.9% | 6.4% | 5.0% |
Demographics & statistics
3,656
Population
98
People per sq mi
38.9
Median age
$125,352
Median household income
$55,070
Per capita income
$283,600
Median home value
$1,352
Median monthly rent
90.4%
Home ownership
1.3%
Poverty rate
3.7%
Unemployment
1,262
Housing units
44.2%
Bachelor's or higher
Age distribution
Male
Female
117
Under 5
112
163
5–9
156
164
10–14
157
140
15–19
134
71
20–24
67
198
25–34
189
228
35–44
217
315
45–54
301
195
55–59
187
88
60–64
85
101
65–74
96
61
75–84
59
28
85+
27
← Male
Female →
Age summary
| Group | Count | % |
|---|---|---|
| Under 18 | 1,050 | 28.7% |
| 18 and over | 2,606 | 71.3% |
| 65 and over | 372 | 10.2% |
| Median age | 38.9 years | |
Race & ethnicity
White
91.1%
Two or more races
5.5%
Hispanic or Latino
1.9%
Black or African American
0.7%
Other race
0.7%
Asian
0.2%
| Group | Count | % |
|---|---|---|
| White | 3,392 | 91.1% |
| Two or more races | 204 | 5.5% |
| Hispanic or Latino | 69 | 1.9% |
| Black or African American | 26 | 0.7% |
| Other race | 25 | 0.7% |
| Asian | 9 | 0.2% |
Household income
| Income range | This ZIP | County avg | State avg |
|---|---|---|---|
| Under $50k | 13.8% | 36.3% | 40.1% |
| $50k – $100k | 30.7% | 33.7% | 33.4% |
| $100k – $200k | 38.5% | 23.6% | 21.5% |
| Over $200k | 16.9% | 6.4% | 5.0% |
Under $10k
1.0%
$15k–$25k
2.7%
$25k–$35k
4.0%
$35k–$50k
6.3%
$50k–$75k
11.8%
$75k–$100k
12.0%
$100k–$150k
21.1%
$150k–$200k
16.7%
$200k+
24.4%
| Range | % of households |
|---|---|
| Under $10k | 1.0% |
| $15k–$25k | 2.7% |
| $25k–$35k | 4.0% |
| $35k–$50k | 6.3% |
| $50k–$75k | 11.8% |
| $75k–$100k | 12.0% |
| $100k–$150k | 21.1% |
| $150k–$200k | 16.7% |
| $200k+ | 24.4% |
| Median income | $125,352 |
Housing
Home values
Under $50k
0.3%
$50k–$100k
2.1%
$100k–$150k
5.3%
$150k–$200k
17.3%
$200k–$300k
30.2%
$300k–$500k
43.1%
$500k–$1M
1.7%
Housing overview
| Metric | Value |
|---|---|
| Median home value | $283,600 |
| Median rent / month | $1,352 |
| Owner occupied | 90.4% |
| Renter occupied | 9.6% |
| Vacant | 5.3% |
| Single-family detached | 79.2% |
| Large apartment buildings | 0.0% |
| Mobile homes | 0.0% |
| Median rooms | 7.3 |
| Avg household size (owned) | 2.82 |
Year built
| Era | % |
|---|---|
| 2020 or later | 0.7% |
| 2010–2019 | 28.8% |
| 2000–2009 | 31.7% |
| 1990–1999 | 3.7% |
| 1980–1989 | 6.9% |
| 1970–1979 | 8.0% |
| 1960–1969 | 5.9% |
| 1950–1959 | 3.6% |
| 1940–1949 | 1.2% |
| 1939 or earlier | 9.5% |
Bedrooms
| Size | % of units |
|---|---|
| No bedroom (studio) | 0.0% |
| 1 bedroom | 2.1% |
| 2 bedrooms | 13.3% |
| 3 bedrooms | 32.1% |
| 4 bedrooms | 31.8% |
| 5+ bedrooms | 20.8% |
Vehicles per household
| Vehicles | % of households |
|---|---|
| No vehicle | 2.1% |
| 1 vehicle | 16.2% |
| 2 vehicles | 50.6% |
| 3 or more | 31.1% |
Heating fuel
| Fuel type | % |
|---|---|
| Utility gas | 68.1% |
| Electricity | 11.4% |
| Propane / LP gas | 19.7% |
| No fuel used | 0.8% |
Households & families
| Household type | Count | % |
|---|---|---|
| Married-couple family | 940 | 71.5% |
| Cohabiting couple | 82 | 6.2% |
| Male householder, no spouse | 140 | 10.6% |
| Female householder, no spouse | 153 | 11.6% |
| Households with children under 18 | 580 | 44.1% |
| Households with seniors (65+) | 266 | 20.2% |
| Average household size | 2.78 | |
Marital status
| Status | Male | Female |
|---|---|---|
| Never married | 35.0% | 14.3% |
| Married | 59.4% | 72.8% |
| Separated | 0.0% | 0.0% |
| Widowed | 0.9% | 5.8% |
| Divorced | 4.7% | 7.0% |
Education
Less than 9th grade
0.0%
Some HS, no diploma
0.8%
HS graduate
24.0%
Some college, no degree
17.6%
Associate's degree
13.4%
Bachelor's degree
27.4%
Graduate / professional
16.8%
| Metric | % |
|---|---|
| HS diploma or higher | 99.2% |
| Bachelor's or higher | 44.2% |
School enrollment (ages 3–17)
| Type | Count | % |
|---|---|---|
| Nursery / preschool | 93 | 10.7% |
| Kindergarten | 77 | 8.9% |
| Elementary school | 422 | 48.6% |
| High school | 201 | 23.1% |
| College / grad school | 76 | 8.7% |
Employment
Industry of employment
Education & healthcare
26.5%
Finance & real estate
17.1%
Manufacturing
14.2%
Professional & management
8.7%
Construction
8.0%
Information
5.6%
Other services
4.1%
Transportation & utilities
3.6%
Retail trade
3.4%
Arts, food & hospitality
3.2%
Public administration
2.8%
Agriculture & mining
1.8%
Wholesale trade
1.1%
Occupation
| Category | % |
|---|---|
| Management, business & arts | 42.6% |
| Service | 6.4% |
| Sales & office | 28.7% |
| Natural resources & construction | 11.2% |
| Production & transportation | 11.2% |
Employment type
| Type | % |
|---|---|
| Private sector | 75.6% |
| Government | 14.8% |
| Self-employed | 9.6% |
| Unpaid family workers | 0.0% |
Commute
| Method | % |
|---|---|
| Drive alone | 78.9% |
| Carpool | 4.2% |
| Public transit | 0.2% |
| Walk | 0.0% |
| Work from home | 16.7% |
| Other means | 0.0% |
| Avg commute (minutes) | 21.4 |
Poverty
All people
1.3%
Under 18 years
1.9%
18 and over
1.1%
Married-couple families
0.3%
Female-led households
0.0%
Income support
| Source | % of households |
|---|---|
| Social Security | 20.5% |
| Retirement income | 15.5% |
| Supplemental Security | 0.5% |
| Cash public assistance | 11.6% |
| Food stamps / SNAP | 1.7% |
Health indicators
| Condition | % |
|---|---|
| Obesity | 36.1% |
| High blood pressure | 30.1% |
| High cholesterol | 30.9% |
| Diabetes | 8.3% |
| Heart disease | 5.1% |
| Stroke | 2.3% |
| Asthma | 9.2% |
| Arthritis | 22.4% |
| Kidney disease | 2.3% |
| Pulmonary disease | 5.1% |
| Cancer | 6.5% |
| Behavior / access | % |
|---|---|
| Smoking | 14.4% |
| Binge drinking | 22.5% |
| No physical activity | 18.2% |
| Less than 7 hrs sleep | 30.1% |
| Depression | 18.4% |
| Fair or poor health | 9.7% |
| Poor mental health | 12.8% |
| Poor physical health | 7.9% |
| No health insurance | 7.4% |
| Visited doctor (checkup) | 76.9% |
| Visited dentist | 73.0% |
| Cholesterol screening | 89.8% |
| Teeth loss | 8.7% |
Veterans & disability
| Veterans | Count | % |
|---|---|---|
| Civilian veterans | 193 | 7.4% |
| Disability | % |
|---|---|
| Any disability | 4.4% |
| Under 18 | 0.0% |
| 18–64 years | 2.7% |
| 65 and over | 26.9% |
Health insurance coverage
| Type | % |
|---|---|
| Private insurance | 91.0% |
| Public insurance | 28.4% |
| No insurance | 1.3% |
| Uninsured under 19 | 0.0% |
Language & origin
Language spoken at home (age 5+)
| Language | Count | % |
|---|---|---|
| English only | 3,427 | 93.7% |
| Spanish | 23 | 0.7% |
| Other Indo-European | 10 | 0.3% |
| Asian & Pacific Islander | 3 | 0.1% |
| Other languages | 10 | 0.3% |
Place of birth & citizenship
| Origin | Count | % |
|---|---|---|
| Native born (US) | 3,594 | 98.3% |
| Born in same state | 3,594 | 98.3% |
| Born in different state | 2,781 | 76.1% |
| Foreign born | 0 | 0.0% |
| Naturalized citizen | 62 | 1.7% |
| Not a US citizen | 41 | 66.1% |
Ancestry
| Ancestry | Count | % |
|---|---|---|
| Italian | 627 | 17.1% |
| French | 373 | 10.2% |
| Arab | 334 | 9.1% |
| Polish | 125 | 3.4% |
| Ancestry | Count | % |
|---|---|---|
| English | 119 | 3.3% |
| Dutch | 26 | 0.7% |
| German | 25 | 0.7% |
Technology access
| Metric | % of households |
|---|---|
| Computer access | 36.0% |
| Internet access | 97.6% |
Source: U.S. Census Bureau, American Community Survey 2025 estimates.
Frequently asked questions about ZIP code 52228
What city is ZIP code 52228 in?
ZIP code 52228 is primarily assigned to Fairfax, Iowa.
What county is ZIP code 52228 in?
ZIP code 52228 falls within Linn County, Iowa.
Is ZIP code 52228 mostly owner-occupied?
90% of occupied units in ZIP code 52228 are owner-occupied, well above the national average.
What is the median household income in ZIP code 52228?
The median household income in ZIP code 52228 is $125,352, above the national median of ~$75,000.
What is the population of ZIP code 52228?
ZIP code 52228 has an estimated population of 3,656 residents, with a density of 98 people per square mile.
What is the typical home value in ZIP code 52228?
The median home value in ZIP code 52228 is $283,600.
What timezone is ZIP code 52228 in?
ZIP code 52228 observes the CST timezone.