Postal Codes

52340 ZIP Code

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ZIP code 52340 covers Tiffin, Iowa, with a population of about 5,695 and a median household income of $105,517.

Population
5,695299 per square mile
Median age
33.25.5 points below the US average
Median household income
$105,5171.4× the Iowa median
Poverty rate
6.6%5.8 points below the US average
Typical home value
$348,852up 18.2% in five years
Median rent
$1,3361.4× the Iowa median
Degree or higher
58.4%23.4 points above the US average
Homeownership
78.9%13.9 points above the US average
Time zone
Central UTC-06:00observes daylight saving time
Businesses
87

Where 52340 is

Tiffin, Iowa — the area the Census Bureau draws for this ZIP code. ZIP codes are sets of delivery routes rather than areas, so this is the Census approximation of one, not a Postal Service boundary.

People and households

American Community Survey 2019–2023 five-year estimates

Population5,695
Median age33.2
Family households71.3%
Born outside the US4.4%
Speaks a language other than English at home4.8%
White (non-Hispanic)79.9%
Black (non-Hispanic)5.1%
Asian (non-Hispanic)2.6%
Hispanic or Latino4.5%
Veterans5.3%
Population by age
MaleFemale0-45-910-1415-1920-2425-3435-4445-5455-6465-7475-8485+
Income and poverty

American Community Survey 2019–2023 five-year estimates

Median household income$105,517
Income per person$61,344
Poverty rate6.6%
Households on SNAP or cash assistance2.5%

Household income distribution

Under $10k0.9%
$10–15k5.6%
$15–20k2.0%
$20–25k0.8%
$25–30k0.0%
$30–35k1.3%
$35–40k1.3%
$40–45k4.7%
$45–50k0.3%
$50–60k3.8%
$60–75k8.6%
$75–100k19.4%
$100–125k13.4%
$125–150k15.4%
$150–200k12.2%
$200k or more10.3%

Income as declared to the IRS

Filed returns rather than survey responses, so this counts tax units and not households.

Tax returns filed3,130
Mean adjusted gross income$90,213
Returns declaring $200,000 or more7.7%
Returns, under $25k17.3%
Returns, $25k–$50k21.4%
Returns, $50k–$75k16.3%
Returns, $75k–$100k12.5%
Returns, $100k–$200k24.9%
Returns, $200k or more7.7%
Housing

American Community Survey 2019–2023 five-year estimates

Median home value$317,900
Median gross rent$1,336
Owner-occupied78.9%
Vacant homes3.2%
Median year built2010

What the homes are

Detached house42%
Attached house41.2%
2 to 4 units6.4%
5 to 19 units8.9%
20 or more units0.9%
Mobile home0.6%
Home values and rents today

Zillow Home Value Index and Zillow Observed Rent Index, courtesy of Zillow. Monthly and current, where the Census figures above are a five-year average and are capped at $2,000,000.

Typical home value$348,852as of 2026-07
Typical home value, 1 yearup 1.7%
Typical home value, 5 yearsup 18.2%
Typical home value, 10 yearsup 39.3%
Typical home value since 2000
200920172026$348,852$199,357

$203,406 in 2009 to $348,852 in 2026.

Work, commuting and education

American Community Survey 2019–2023 five-year estimates

Unemployment rate0.5%
Bachelor's degree or higher58.4%
High school diploma or higher98.7%
Works from home17.8%
Drives to work alone77.6%
Takes public transport0.2%
Commutes 45 minutes or more4.8%
Health

CDC PLACES 2025 release, model-based estimates. These are modelled small-area estimates for adults, not counts of diagnosed cases.

Obesity30.6% 2.8 pts below the national average of 33.4%
Diagnosed diabetes7.1% 4.9 pts below the national average of 12%
Currently smokes10.7% 2.5 pts below the national average of 13.2%
High blood pressure25.2% 8.9 pts below the national average of 34.1%
Fair or poor general health11.7% 8.6 pts below the national average of 20.3%
No health insurance (18–64)5.4% 5.9 pts below the national average of 11.3%
Depression21.3% 0.6 pts below the national average of 21.9%
No leisure-time physical activity15.3% 10.1 pts below the national average of 25.4%
Arthritis18.2% 6.9 pts below the national average of 25.1%
Binge drinking25.7% 9.7 pts above the national average of 16%
Taking blood pressure medication71.1% 3.6 pts below the national average of 74.7%
Cancer (non-skin)6.2% 1.5 pts below the national average of 7.7%
Current asthma9.7% 0.7 pts below the national average of 10.4%
Coronary heart disease3.6% 2.6 pts below the national average of 6.2%
Routine check-up in past year75.6% 1.1 pts below the national average of 76.7%
Cholesterol screening84.1% 1.8 pts below the national average of 85.9%
Cognitive disability11.5% 3.3 pts below the national average of 14.8%
Colorectal screening62.8% 1.5 pts below the national average of 64.3%
COPD4% 2.6 pts below the national average of 6.6%
Visited a dentist72.3% 11 pts above the national average of 61.3%
Any disability19.7% 11 pts below the national average of 30.7%
Lacks emotional support22.1% 2.7 pts below the national average of 24.8%
Food insecurity8.4% 8.7 pts below the national average of 17.1%
Received food stamps6.5% 7.8 pts below the national average of 14.3%
Hearing disability4.4% 2.3 pts below the national average of 6.7%
High cholesterol27.8% 8.4 pts below the national average of 36.2%
Housing insecurity7.9% 5.9 pts below the national average of 13.8%
Independent living disability5.4% 3 pts below the national average of 8.4%
Lacks transport5.5% 3.7 pts below the national average of 9.2%
Loneliness31.5% 2.9 pts below the national average of 34.4%
Mammography use84% 8.1 pts above the national average of 75.9%
Poor mental health (14+ days)15.7% 1.1 pts below the national average of 16.8%
Mobility disability7.3% 6.7 pts below the national average of 14%
Poor physical health (14+ days)9% 4.5 pts below the national average of 13.5%
Self-care disability2.1% 1.9 pts below the national average of 4%
Utility shut-off threat5.3% 3.5 pts below the national average of 8.8%
Sleeps under 7 hours30.2% 6.2 pts below the national average of 36.4%
Stroke2% 1.4 pts below the national average of 3.4%
All natural teeth lost8% 5 pts below the national average of 13%
Vision disability2.8% 2.8 pts below the national average of 5.6%
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Business and employment

Census ZIP Code Business Patterns 2022

Business establishments87
People employed539
Annual payroll$21,964,000
Natural hazard risk

FEMA National Risk Index, estimated for this ZIP code from census tract data — the NRI is not published per ZIP.

Overall riskHigher than 90.7% of US census tracts
FEMA ratingRelatively Moderate to Relatively High across the 3 census tracts this ZIP code covers
Expected annual loss92.1 out of 100
Community resilience94.6 out of 100

By hazard

Score is out of 100 and is the area-weighted average across the census tracts this ZIP code covers. The rating beside it is the highest any one of those tracts carries.

Tornado99.8Very High at its worst in this ZIP code
Strong wind99.5Very High at its worst in this ZIP code
Drought96.5Relatively High at its worst in this ZIP code
Hail94.9Relatively High at its worst in this ZIP code
Cold wave93.5Relatively High at its worst in this ZIP code
Landslide91.8Relatively Low at its worst in this ZIP code
Winter weather91.5Relatively High at its worst in this ZIP code
Wildfire85.4Relatively Low at its worst in this ZIP code
Heat wave84.3Relatively High at its worst in this ZIP code
Lightning80.8Relatively High at its worst in this ZIP code
Ice storm80Relatively Moderate at its worst in this ZIP code
River flooding76.1Relatively High at its worst in this ZIP code
Hurricane27.3Very Low at its worst in this ZIP code
Earthquake26.6Very Low at its worst in this ZIP code
Compared with Iowa and the United States

State and national columns are figures for those areas, not for this ZIP code. American Community Survey 2019–2023 five-year estimates

This ZIPIowaUnited States
Median household income$105,517$73,147$78,538
Income per person$61,344$39,728$43,289
Poverty rate6.6%11%12.4%
Median home value$317,900$195,900$303,400
Median gross rent$1,336$949$1,348
Homeownership78.9%71.5%65%
Bachelor's degree or higher58.4%30.9%35%
Unemployment rate0.5%3.6%5.2%
Works from home17.8%10.4%13.5%
Born outside the US4.4%5.7%13.9%
Median age33.238.638.7
Climate

NOAA US Climate Normals 1991-2020, from the nearest weather station with a full year of records. The station and its distance are named above, because a station forty kilometres away describes somewhere else.

Weather stationIOWA CITY MUNI AP, IA US13.5 km away
Rain in a year36 in

Average high and low by month

January30.9°F / 14.6°F1.04 in rain
February35.5°F / 18.5°F1.21 in rain
March49.5°F / 29.5°F2.21 in rain
April62.6°F / 40.1°F3.76 in rain
May73.4°F / 51.7°F4.48 in rain
June82.6°F / 62.1°F5.29 in rain
July85.8°F / 65.8°F3.91 in rain
August83.8°F / 63.3°F3.94 in rain
September77.5°F / 54.2°F3.24 in rain
October64.1°F / 42.1°F2.98 in rain
November49.2°F / 30.4°F2.17 in rain
December36.3°F / 20.1°F1.45 in rain
Access to food

USDA Food Access Research Atlas, estimated for this ZIP code from census tract data. Each figure is the share of the ZIP code's land area that falls in a tract carrying that flag.

Low income and far from a supermarketNone of this ZIP code
Far from a supermarketNone of this ZIP code
No vehicle and far from a supermarket33% of this ZIP code's area
School districts

NCES Geographic Relationship File 2025, which states the association between each district and each ZIP code tabulation area directly. Elementary and secondary districts can cover the same ground, so shares need not total 100%.

Clear Creek-Amana Community School District100% of this ZIP code's land area
Community and walkability

CDC/ATSDR Social Vulnerability Index 2022 and the EPA National Walkability Index, both estimated for this ZIP code from census tract data. Vulnerability figures are national percentile ranks, not measurements.

Overall social vulnerability28more vulnerable than 28% of US census tracts
Socioeconomic status38more vulnerable than 38% of US census tracts
Household characteristics34more vulnerable than 34% of US census tracts
Racial and ethnic minority status23more vulnerable than 23% of US census tracts
Housing type and transport27more vulnerable than 27% of US census tracts
Walkability5.7 out of 20Least walkable
Nearby ZIP codes

The closest ZIP codes by centre point, which is not the same as sharing a border.

52241 Coralville, IA7.3 km away
52317 North Liberty, IA7.6 km away
52322 Oxford, IA9.7 km away
52246 Iowa City, IA11.2 km away
52242 Iowa City, IA11.6 km away
52243 Iowa City, IA13 km away
52338 Swisher, IA13.9 km away
52245 Iowa City, IA14.1 km away
Location, counties and time zone

County shares from Census 2020 ZCTA relationship files. Time zone from the USDOT National Transportation Atlas, which renders the boundaries written into 49 CFR Part 71.

Johnson County100% of this ZIP code's land area
Time zoneCentral (UTC-06:00 standard)
Daylight saving timeObserved
Land area19.05 sq mi
Water area0.01 sq mi
Population density299 people per sq mi
Latitude, longitude41.7018, -91.6773

Figures are published for this ZIP code or its Census tabulation area unless a section says otherwise. Estimates whose margin of error made them unreliable are omitted rather than shown. Sources: US Census Bureau, CDC, IRS.

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