52340 ZIP Code — Tiffin, IA
Johnson County, Iowa
ZIP code 52340 is located in Tiffin, Iowa, within Johnson County. It covers approximately 19.05 square miles and serves a population of 5,192 residents. This is a standard ZIP code in the Central (CT) timezone, served by area code 319.
About ZIP code 52340
The housing stock consists of a mix of housing types. Much of the housing stock is relatively new, reflecting recent development activity. Median home value is $297,100. Owner-occupancy is high at 85%, well above the national average.
Median household income is $95,048.
The dominant occupation class is management, business, and professional, with education and healthcare as the leading industry. The average commute of 20 minutes is near the national average.
Educational attainment is high — 48% of residents hold a bachelor's degree or higher, well above the national average of 33%.
5,192
population
19.05
sq mi land
Standard
ZIP type
Central (CT)
timezone
52340 ZIP code map
Cities in ZIP code 52340
Below are the cities the US Postal Service accepts for ZIP code 52340. Using any city not on this list may result in mail delivery delays.
| City | Status |
|---|---|
| Tiffin | Preferred |
Nearby ZIP codes
52322 Oxford (3 mi)
52317 North Liberty (4.4 mi)
52241 Coralville (5 mi)
52246 Iowa City (5.6 mi)
52242 Iowa City (7.9 mi)
52338 Swisher (8.1 mi)
52243 Iowa City (8.6 mi)
52240 Iowa City (8.7 mi)
52245 Iowa City (9.2 mi)
52333 Solon (11.4 mi)
52204 Amana (11.5 mi)
52203 Amana (11.9 mi)
Demographics
updated 05/2026
| Population | |
|---|---|
| Total population | 5,192 |
| Population density | 273 / sq mi |
| State FIPS | 19 |
| County FIPS | 103 |
| Geography | |
|---|---|
| Land area | 19.05 sq mi |
| Water area | 0.01 sq mi |
| Latitude | 41.7126 |
| Longitude | -91.6816 |
| 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 | 28.4% | 41.3% | 40.1% |
| $50k – $100k | 37.4% | 27.5% | 33.4% |
| $100k – $200k | 31.6% | 23.2% | 21.5% |
| Over $200k | 2.5% | 7.9% | 5.0% |
Demographics & statistics
5,192
Population
273
People per sq mi
32.4
Median age
$95,048
Median household income
$37,998
Per capita income
$297,100
Median home value
$1,189
Median monthly rent
84.8%
Home ownership
8.3%
Poverty rate
3.3%
Unemployment
1,880
Housing units
47.6%
Bachelor's or higher
Age distribution
Male
Female
226
Under 5
250
224
5–9
248
194
10–14
215
82
15–19
91
271
20–24
299
472
25–34
520
292
35–44
322
193
45–54
213
188
55–59
208
90
60–64
99
163
65–74
180
35
75–84
38
38
85+
41
← Male
Female →
Age summary
| Group | Count | % |
|---|---|---|
| Under 18 | 1,453 | 28.0% |
| 18 and over | 3,739 | 72.0% |
| 65 and over | 495 | 9.5% |
| Median age | 32.4 years | |
Race & ethnicity
White
83.6%
Two or more races
5.8%
Black or African American
4.4%
Asian
2.7%
Hispanic or Latino
1.8%
Other race
1.7%
American Indian / Alaska Native
0.2%
| Group | Count | % |
|---|---|---|
| White | 4,416 | 83.6% |
| Two or more races | 308 | 5.8% |
| Black or African American | 230 | 4.4% |
| Asian | 141 | 2.7% |
| Hispanic or Latino | 93 | 1.8% |
| Other race | 88 | 1.7% |
| American Indian / Alaska Native | 9 | 0.2% |
Household income
| Income range | This ZIP | County avg | State avg |
|---|---|---|---|
| Under $50k | 28.4% | 41.3% | 40.1% |
| $50k – $100k | 37.4% | 27.5% | 33.4% |
| $100k – $200k | 31.6% | 23.2% | 21.5% |
| Over $200k | 2.5% | 7.9% | 5.0% |
Under $10k
0.7%
$10k–$15k
7.0%
$15k–$25k
3.0%
$25k–$35k
2.6%
$35k–$50k
6.8%
$50k–$75k
14.4%
$75k–$100k
17.5%
$100k–$150k
33.4%
$150k–$200k
10.0%
$200k+
4.7%
| Range | % of households |
|---|---|
| Under $10k | 0.7% |
| $10k–$15k | 7.0% |
| $15k–$25k | 3.0% |
| $25k–$35k | 2.6% |
| $35k–$50k | 6.8% |
| $50k–$75k | 14.4% |
| $75k–$100k | 17.5% |
| $100k–$150k | 33.4% |
| $150k–$200k | 10.0% |
| $200k+ | 4.7% |
| Median income | $95,048 |
Housing
Home values
Under $50k
0.6%
$50k–$100k
8.1%
$100k–$150k
2.5%
$150k–$200k
1.9%
$200k–$300k
38.4%
$300k–$500k
38.6%
$500k–$1M
9.9%
Housing overview
| Metric | Value |
|---|---|
| Median home value | $297,100 |
| Median rent / month | $1,189 |
| Owner occupied | 84.8% |
| Renter occupied | 15.2% |
| Vacant | 10.2% |
| Single-family detached | 48.8% |
| Large apartment buildings | 0.0% |
| Mobile homes | 0.8% |
| Median rooms | 6.3 |
| Avg household size (owned) | 2.66 |
Year built
| Era | % |
|---|---|
| 2020 or later | 4.5% |
| 2010–2019 | 44.3% |
| 2000–2009 | 24.5% |
| 1990–1999 | 15.5% |
| 1980–1989 | 3.4% |
| 1970–1979 | 1.1% |
| 1960–1969 | 0.0% |
| 1950–1959 | 2.3% |
| 1940–1949 | 0.0% |
| 1939 or earlier | 4.2% |
Bedrooms
| Size | % of units |
|---|---|
| No bedroom (studio) | 0.0% |
| 1 bedroom | 1.3% |
| 2 bedrooms | 16.0% |
| 3 bedrooms | 44.6% |
| 4 bedrooms | 25.6% |
| 5+ bedrooms | 12.6% |
Vehicles per household
| Vehicles | % of households |
|---|---|
| No vehicle | 0.1% |
| 1 vehicle | 25.2% |
| 2 vehicles | 58.7% |
| 3 or more | 16.1% |
Heating fuel
| Fuel type | % |
|---|---|
| Utility gas | 47.9% |
| Electricity | 37.6% |
| Propane / LP gas | 7.7% |
| Fuel oil | 0.7% |
| No fuel used | 4.7% |
Households & families
| Household type | Count | % |
|---|---|---|
| Married-couple family | 1,028 | 52.6% |
| Cohabiting couple | 237 | 12.1% |
| Male householder, no spouse | 120 | 6.1% |
| Female householder, no spouse | 570 | 29.2% |
| Households with children under 18 | 774 | 39.6% |
| Households with seniors (65+) | 338 | 17.3% |
| Average household size | 2.66 | |
Marital status
| Status | Male | Female |
|---|---|---|
| Never married | 36.6% | 24.7% |
| Married | 59.3% | 51.2% |
| Separated | 0.2% | 0.2% |
| Widowed | 0.0% | 3.8% |
| Divorced | 3.8% | 20.0% |
Education
Less than 9th grade
3.3%
Some HS, no diploma
0.7%
HS graduate
19.1%
Some college, no degree
11.5%
Associate's degree
17.7%
Bachelor's degree
31.1%
Graduate / professional
16.5%
| Metric | % |
|---|---|
| HS diploma or higher | 96.0% |
| Bachelor's or higher | 47.6% |
School enrollment (ages 3–17)
| Type | Count | % |
|---|---|---|
| Nursery / preschool | 147 | 8.3% |
| Kindergarten | 123 | 6.9% |
| Elementary school | 714 | 40.3% |
| High school | 135 | 7.6% |
| College / grad school | 651 | 36.8% |
Employment
Industry of employment
Education & healthcare
38.6%
Retail trade
9.6%
Manufacturing
9.2%
Construction
7.8%
Finance & real estate
7.5%
Professional & management
7.1%
Public administration
6.5%
Other services
5.1%
Transportation & utilities
2.7%
Agriculture & mining
2.6%
Arts, food & hospitality
1.9%
Wholesale trade
1.2%
Information
0.3%
Occupation
| Category | % |
|---|---|
| Management, business & arts | 59.6% |
| Service | 8.3% |
| Sales & office | 21.4% |
| Natural resources & construction | 7.2% |
| Production & transportation | 3.6% |
Employment type
| Type | % |
|---|---|
| Private sector | 74.3% |
| Government | 21.8% |
| Self-employed | 3.8% |
| Unpaid family workers | 0.2% |
Commute
| Method | % |
|---|---|
| Drive alone | 78.3% |
| Carpool | 2.6% |
| Public transit | 0.2% |
| Walk | 0.0% |
| Work from home | 18.5% |
| Other means | 0.5% |
| Avg commute (minutes) | 20.2 |
Poverty
All people
8.3%
Under 18 years
2.2%
18 and over
10.7%
Married-couple families
0.6%
Female-led households
9.2%
Income support
| Source | % of households |
|---|---|
| Social Security | 19.1% |
| Retirement income | 10.5% |
| Supplemental Security | 0.3% |
| Cash public assistance | 0.0% |
| Food stamps / SNAP | 2.0% |
Health indicators
| Condition | % |
|---|---|
| Obesity | 28.0% |
| High blood pressure | 22.3% |
| High cholesterol | 25.1% |
| Diabetes | 6.0% |
| Heart disease | 3.7% |
| Stroke | 1.7% |
| Asthma | 9.0% |
| Arthritis | 17.1% |
| Kidney disease | 1.8% |
| Pulmonary disease | 3.9% |
| Cancer | 4.9% |
| Behavior / access | % |
|---|---|
| Smoking | 13.2% |
| Binge drinking | 25.7% |
| No physical activity | 16.8% |
| Less than 7 hrs sleep | 29.4% |
| Depression | 20.5% |
| Fair or poor health | 8.3% |
| Poor mental health | 13.7% |
| Poor physical health | 6.8% |
| No health insurance | 7.9% |
| Visited doctor (checkup) | 70.6% |
| Visited dentist | 71.1% |
| Cholesterol screening | 87.0% |
| Teeth loss | 8.3% |
Veterans & disability
| Veterans | Count | % |
|---|---|---|
| Civilian veterans | 220 | 5.9% |
| Disability | % |
|---|---|
| Any disability | 7.1% |
| Under 18 | 1.0% |
| 18–64 years | 7.2% |
| 65 and over | 24.6% |
Health insurance coverage
| Type | % |
|---|---|
| Private insurance | 89.5% |
| Public insurance | 20.0% |
| No insurance | 2.7% |
| Uninsured under 19 | 0.0% |
Language & origin
Language spoken at home (age 5+)
| Language | Count | % |
|---|---|---|
| English only | 4,716 | 90.8% |
| Spanish | 137 | 2.9% |
| Other Indo-European | 66 | 1.4% |
| Asian & Pacific Islander | 29 | 0.6% |
| Other languages | 42 | 0.9% |
Place of birth & citizenship
| Origin | Count | % |
|---|---|---|
| Native born (US) | 4,888 | 94.1% |
| Born in same state | 4,888 | 94.1% |
| Born in different state | 3,710 | 71.5% |
| Foreign born | 0 | 0.0% |
| Naturalized citizen | 304 | 5.9% |
| Not a US citizen | 222 | 73.0% |
Ancestry
| Ancestry | Count | % |
|---|---|---|
| Italian | 1,072 | 20.6% |
| French | 482 | 9.3% |
| Polish | 200 | 3.9% |
| Ancestry | Count | % |
|---|---|---|
| Arab | 121 | 2.3% |
| English | 50 | 1% |
| Dutch | 36 | 0.7% |
Technology access
| Metric | % of households |
|---|---|
| Computer access | 37.7% |
| Internet access | 99.3% |
Source: U.S. Census Bureau, American Community Survey 2025 estimates.
Frequently asked questions about ZIP code 52340
What city is ZIP code 52340 in?
ZIP code 52340 is primarily assigned to Tiffin, Iowa.
What county is ZIP code 52340 in?
ZIP code 52340 falls within Johnson County, Iowa.
Is ZIP code 52340 mostly owner-occupied?
85% of occupied units in ZIP code 52340 are owner-occupied, well above the national average.
How educated is the population of ZIP code 52340?
48% of residents hold a bachelor's degree or higher — well above the national average of ~33%, reflecting a highly educated population.
What is the population of ZIP code 52340?
ZIP code 52340 has an estimated population of 5,192 residents, with a density of 273 people per square mile.
What is the typical home value in ZIP code 52340?
The median home value in ZIP code 52340 is $297,100.
What timezone is ZIP code 52340 in?
ZIP code 52340 observes the CST timezone.