Postal Codes

50647 ZIP Code

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ZIP code 50647 covers Janesville, Iowa, with a population of about 2,073 and a median household income of $98,052.

Population
2,07368 per square mile
Median age
48.19.4 points above the US average
Median household income
$98,0521.3× the Iowa median
Poverty rate
3%9.4 points below the US average
Typical home value
$319,593up 32.1% in five years
Median rent
$60736% below the Iowa median
Degree or higher
27.8%7.2 points below the US average
Homeownership
94.1%29.1 points above the US average
Time zone
Central UTC-06:00observes daylight saving time
Businesses
35

Where 50647 is

Janesville, 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

Population2,073
Median age48.1
Family households77.5%
Born outside the US0.6%
Speaks a language other than English at home1.3%
White (non-Hispanic)96.1%
Black (non-Hispanic)0%
Asian (non-Hispanic)0%
Hispanic or Latino1.3%
Veterans6.5%
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$98,052
Income per person$42,943
Poverty rate3%
Households on SNAP or cash assistance4.2%

Household income distribution

Under $10k1.3%
$10–15k1.5%
$15–20k2.7%
$20–25k0.7%
$25–30k1.7%
$30–35k0.4%
$35–40k3.1%
$40–45k3.2%
$45–50k5.1%
$50–60k5.6%
$60–75k6.2%
$75–100k22.5%
$100–125k15.1%
$125–150k12.2%
$150–200k11.3%
$200k or more7.3%

Income as declared to the IRS

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

Tax returns filed960
Mean adjusted gross income$88,805
Returns declaring $200,000 or more5.2%
Returns, under $25k20.8%
Returns, $25k–$50k20.8%
Returns, $50k–$75k13.5%
Returns, $75k–$100k13.5%
Returns, $100k–$200k26.0%
Returns, $200k or more5.2%
Housing

American Community Survey 2019–2023 five-year estimates

Median home value$278,200
Median gross rent$607
Rent as a share of household income18.6%
Owner-occupied94.1%
Vacant homes10.5%
Median year built1976

What the homes are

Detached house91.5%
Attached house1.9%
2 to 4 units2.7%
5 to 19 units0.5%
Mobile home3.4%
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$319,593as of 2026-07
Typical home value, 1 yearup 3%
Typical home value, 5 yearsup 32.1%
Typical home value, 10 yearsup 64.3%
Typical home value since 2000
200920172026$319,593$161,347

$162,069 in 2009 to $319,593 in 2026.

Work, commuting and education

American Community Survey 2019–2023 five-year estimates

Unemployment rate2.2%
Bachelor's degree or higher27.8%
High school diploma or higher96.7%
Works from home7.2%
Drives to work alone79.6%
Takes public transport0%
Commutes 45 minutes or more2.5%
Health

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

Obesity37.4% 4 pts above the national average of 33.4%
Diagnosed diabetes10.2% 1.8 pts below the national average of 12%
Currently smokes12.2% 1 pts below the national average of 13.2%
High blood pressure34.7% 0.6 pts above the national average of 34.1%
Fair or poor general health14.1% 6.2 pts below the national average of 20.3%
No health insurance (18–64)4.6% 6.7 pts below the national average of 11.3%
Depression19% 2.9 pts below the national average of 21.9%
No leisure-time physical activity20.1% 5.3 pts below the national average of 25.4%
Arthritis28.7% 3.6 pts above the national average of 25.1%
Binge drinking20.6% 4.6 pts above the national average of 16%
Taking blood pressure medication80% 5.3 pts above the national average of 74.7%
Cancer (non-skin)10.6% 2.9 pts above the national average of 7.7%
Current asthma9.6% 0.8 pts below the national average of 10.4%
Coronary heart disease6.5% same as the national average of 6.2%
Routine check-up in past year80.2% 3.5 pts above the national average of 76.7%
Cholesterol screening89% 3.1 pts above the national average of 85.9%
Cognitive disability10.5% 4.3 pts below the national average of 14.8%
Colorectal screening75% 10.7 pts above the national average of 64.3%
COPD5.9% 0.7 pts below the national average of 6.6%
Visited a dentist74% 12.7 pts above the national average of 61.3%
Any disability23.9% 6.8 pts below the national average of 30.7%
Lacks emotional support20.2% 4.6 pts below the national average of 24.8%
Food insecurity6.9% 10.2 pts below the national average of 17.1%
Received food stamps5.5% 8.8 pts below the national average of 14.3%
Hearing disability7.4% 0.7 pts above the national average of 6.7%
High cholesterol37% 0.8 pts above the national average of 36.2%
Housing insecurity6.1% 7.7 pts below the national average of 13.8%
Independent living disability5.8% 2.6 pts below the national average of 8.4%
Lacks transport4.5% 4.7 pts below the national average of 9.2%
Loneliness27.9% 6.5 pts below the national average of 34.4%
Mammography use82.2% 6.3 pts above the national average of 75.9%
Poor mental health (14+ days)13.8% 3 pts below the national average of 16.8%
Mobility disability11% 3 pts below the national average of 14%
Poor physical health (14+ days)11.1% 2.4 pts below the national average of 13.5%
Self-care disability2.6% 1.4 pts below the national average of 4%
Utility shut-off threat4.3% 4.5 pts below the national average of 8.8%
Sleeps under 7 hours31.7% 4.7 pts below the national average of 36.4%
Stroke3.1% same as the national average of 3.4%
All natural teeth lost6.1% 6.9 pts below the national average of 13%
Vision disability3.1% 2.5 pts below the national average of 5.6%
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Business and employment

Census ZIP Code Business Patterns 2022

Business establishments35
People employed355
Annual payroll$17,004,000
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 72.5% of US census tracts
FEMA ratingRelatively Moderate
Expected annual loss80.2 out of 100
Community resilience94.7 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.

Drought97.1Relatively High at its worst in this ZIP code
Strong wind94.6Relatively High at its worst in this ZIP code
Winter weather92.8Relatively High at its worst in this ZIP code
Hail90.3Relatively High at its worst in this ZIP code
Tornado89.6Relatively High at its worst in this ZIP code
River flooding81.2Relatively High at its worst in this ZIP code
Landslide81.1Relatively Low at its worst in this ZIP code
Wildfire79.7Relatively Low at its worst in this ZIP code
Cold wave71.4Relatively Moderate at its worst in this ZIP code
Ice storm59.3Relatively Moderate at its worst in this ZIP code
Lightning42.2Relatively Moderate at its worst in this ZIP code
Hurricane26.1Very Low at its worst in this ZIP code
Heat wave20Relatively Low at its worst in this ZIP code
Earthquake14.7Very 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$98,052$73,147$78,538
Income per person$42,943$39,728$43,289
Poverty rate3%11%12.4%
Median home value$278,200$195,900$303,400
Median gross rent$607$949$1,348
Homeownership94.1%71.5%65%
Bachelor's degree or higher27.8%30.9%35%
Unemployment rate2.2%3.6%5.2%
Works from home7.2%10.4%13.5%
Born outside the US0.6%5.7%13.9%
Median age48.138.638.7
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 stationWATERLOO MUNI AP, IA US12.1 km away
Rain in a year36 in
Snow in a year39 in

Average high and low by month

January28.2°F / 10.7°F1.1 in rain, 10.1 in snow
February32.6°F / 15.2°F1.14 in rain, 9.3 in snow
March46.5°F / 26.9°F1.98 in rain, 4.6 in snow
April60.9°F / 37.9°F4.04 in rain, 1.7 in snow
May72.8°F / 50.2°F4.61 in rain, 0.1 in snow
June82.2°F / 60.8°F5.72 in rain
July85°F / 64°F4.34 in rain
August82.9°F / 61°F4.17 in rain
September76.8°F / 52.4°F3.14 in rain
October63°F / 40.2°F2.76 in rain, 0.3 in snow
November47.1°F / 27.7°F1.85 in rain, 3.1 in snow
December33.7°F / 17°F1.44 in rain, 9.9 in snow
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 supermarket15% of this ZIP code's area
No vehicle and far from a supermarketNone of this ZIP code
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%.

This ZIP code is served by 3 school districts, so the address decides which one, not the ZIP code.

Janesville Consolidated School District72.6% of this ZIP code's land area
Waverly-Shell Rock Community School District19.6% of this ZIP code's land area
Cedar Falls Community School District7.8% 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 vulnerability16more vulnerable than 16% of US census tracts
Socioeconomic status8more vulnerable than 8% of US census tracts
Household characteristics35more vulnerable than 35% of US census tracts
Racial and ethnic minority status6more vulnerable than 6% of US census tracts
Housing type and transport41more vulnerable than 41% of US census tracts
Walkability6.3 out of 20Below average
Nearby ZIP codes

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

50670 Shell Rock, IA11.2 km away
50622 Denver, IA11.6 km away
50660 New Hartford, IA13.3 km away
50613 Cedar Falls, IA13.8 km away
50677 Waverly, IA15.5 km away
50703 Waterloo, IA19.2 km away
50701 Waterloo, IA20.9 km away
50624 Dike, IA22.2 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.

Bremer County62% of this ZIP code's land area
Black Hawk County38% of this ZIP code's land area
Time zoneCentral (UTC-06:00 standard)
Daylight saving timeObserved
Land area30.4 sq mi
Water area0.61 sq mi
Population density68 people per sq mi
Latitude, longitude42.6465, -92.4791

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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