Janesville ZIP Codes — Bremer County, IA

There is one unique ZIP code in Janesville, Iowa and it is 50647. Area code: 319.
1
ZIP codes
30.40
sq mi land
0.61
sq mi water
319
area code
Janesville, IA ZIP code map

About Janesville, IA

Janesville, Iowa, is a small but vibrant city located in Bremer County. With its friendly atmosphere and community-oriented events, it offers a welcoming environment for both residents and visitors. The city, incorporated in 1860, has maintained its charm while providing essential services and amenities to its inhabitants.

Location & geography

Janesville is situated in northeastern Iowa, approximately 12 miles southeast of the city of Waterloo and around 13 miles northwest of Cedar Falls. The city spans a total area of 30.40 square miles, with 0.61 square miles covered by water, providing a mix of urban and rural scenery. The terrain is primarily flat, characteristic of much of the Iowa landscape, making it suitable for agriculture and various outdoor activities.

Community & economy

The character of Janesville is defined by its strong community spirit and active local organizations that enrich daily life. Residents are involved in various industries, primarily agriculture, which plays a significant role in the local economy. Daily activities often revolve around community events, local schools, and recreational opportunities available in the area.

Transportation

Major highways such as Highway 218 and Highway 63 provide convenient access to and from Janesville, making travel to nearby cities quite straightforward. The nearest named airport for commercial air travel is Waterloo Regional Airport, located about 14 miles away. Local transport options are primarily based on personal vehicles, as public transit is limited.

History

Janesville was founded in 1860 and has a rich historical background tied to the agricultural development of the region. Key industries have included farming and manufacturing, which have shaped the community's economy over the years. Notable events in the city's history include the establishment of community festivals that celebrate its heritage.

Did you know?

A surprising fact about Janesville is that it has a history dating back over 160 years, which contributes to its deep sense of community and tradition. Despite its small size, the city fosters a strong local culture with various events that bring residents together throughout the year.

ZIP codes for Janesville, IA (1)
ZIP code City County Map
50647 Janesville Bremer View map

Demographics & statistics

2,032
Population
41.4
Median age
$94,898
Median household income
$40,466
Per capita income
$267,000
Median home value
$538
Median monthly rent
94.9%
Home ownership
2.6%
Poverty rate
1.9%
Unemployment
826
Housing units
25.7%
Bachelor's or higher

Age distribution

Male Female
72
Under 5
66
99
5–9
90
73
10–14
66
42
15–19
39
19
20–24
18
133
25–34
120
152
35–44
139
110
45–54
99
119
55–59
108
84
60–64
76
119
65–74
109
35
75–84
32
7
85+
6
← Male
Female →

Age summary

GroupCount%
Under 1854326.7%
18 and over1,48973.3%
65 and over30815.2%
Median age41.4 years

Race & ethnicity

White 97.1%
Two or more races 2.5%
Black or African American 0.2%
Hispanic or Latino 0.1%
GroupCount%
White1,97797.1%
Two or more races502.5%
Black or African American40.2%
Hispanic or Latino30.1%

Household income

Under $10k 1.4%
$10k–$15k 2.0%
$15k–$25k 4.8%
$25k–$35k 1.7%
$35k–$50k 11.3%
$50k–$75k 10.8%
$75k–$100k 19.6%
$100k–$150k 32.2%
$150k–$200k 12.8%
$200k+ 3.3%
Range% of households
Under $10k1.4%
$10k–$15k2.0%
$15k–$25k4.8%
$25k–$35k1.7%
$35k–$50k11.3%
$50k–$75k10.8%
$75k–$100k19.6%
$100k–$150k32.2%
$150k–$200k12.8%
$200k+3.3%
Median income$94,898

Housing

Home values

Under $50k 3.6%
$50k–$100k 4.4%
$100k–$150k 7.6%
$150k–$200k 11.7%
$200k–$300k 37.0%
$300k–$500k 28.4%
$500k–$1M 7.2%

Housing overview

MetricValue
Median home value$267,000
Median rent / month$538
Owner occupied94.9%
Renter occupied5.1%
Vacant9.2%
Single-family detached93.9%
Large apartment buildings0.0%
Mobile homes1.4%
Median rooms6.5
Avg household size (owned)2.65

Year built

Era%
2020 or later0.0%
2010–20198.7%
2000–200914.2%
1990–199911.2%
1980–19895.4%
1970–197921.0%
1960–19697.7%
1950–19596.7%
1940–19492.9%
1939 or earlier22.2%

Bedrooms

Size% of units
No bedroom (studio)0.0%
1 bedroom2.2%
2 bedrooms22.4%
3 bedrooms49.0%
4 bedrooms19.3%
5+ bedrooms7.2%

Vehicles per household

Vehicles% of households
No vehicle0.9%
1 vehicle18.1%
2 vehicles42.7%
3 or more38.3%

Heating fuel

Fuel type%
Utility gas36.4%
Electricity22.9%
Propane / LP gas31.6%
Fuel oil2.0%
Wood7.1%

Households & families

Household typeCount%
Married-couple family53167.6%
Cohabiting couple627.9%
Male householder, no spouse11815.0%
Female householder, no spouse759.5%
Households with children under 1827935.5%
Households with seniors (65+)21126.8%
Average household size2.59

Marital status

StatusMaleFemale
Never married21.7%13.9%
Married66.9%74.4%
Separated0.8%0.6%
Widowed2.8%5.6%
Divorced7.7%5.6%

Education

Less than 9th grade 0.0%
Some HS, no diploma 3.5%
HS graduate 25.7%
Some college, no degree 23.3%
Associate's degree 21.8%
Bachelor's degree 19.8%
Graduate / professional 5.9%
Metric%
HS diploma or higher96.5%
Bachelor's or higher25.7%

School enrollment (ages 3–17)

TypeCount%
Nursery / preschool336.8%
Kindergarten489.9%
Elementary school25252.0%
High school9219.0%
College / grad school6012.4%

Employment

Industry of employment

Manufacturing 25.0%
Education & healthcare 19.2%
Construction 11.6%
Finance & real estate 8.2%
Other services 8.0%
Retail trade 6.7%
Wholesale trade 5.2%
Transportation & utilities 5.0%
Arts, food & hospitality 5.0%
Professional & management 3.8%
Public administration 1.1%
Information 0.7%
Agriculture & mining 0.5%

Occupation

Category%
Management, business & arts29.5%
Service9.4%
Sales & office22.9%
Natural resources & construction18.8%
Production & transportation19.4%

Employment type

Type%
Private sector72.3%
Government18.8%
Self-employed8.7%
Unpaid family workers0.3%

Commute

Method%
Drive alone82.9%
Carpool10.9%
Public transit0.0%
Walk1.6%
Other means0.0%
Avg commute (minutes)20.2

Poverty

All people 2.6%
Under 18 years 1.1%
18 and over 3.2%
Married-couple families 0.8%
Female-led households 0.0%

Income support

Source% of households
Social Security27.5%
Retirement income26.2%
Supplemental Security6.7%
Cash public assistance0.4%
Food stamps / SNAP4.8%

Health indicators

Condition%
High blood pressure33.8%
High cholesterol34.0%
Heart disease6.7%
Stroke2.9%
Asthma8.9%
Arthritis25.7%
Kidney disease2.9%
Pulmonary disease6.4%
Cancer7.6%
Behavior / access%
Binge drinking21.8%
No physical activity21.9%
Less than 7 hrs sleep29.1%
Fair or poor health11.4%
Poor mental health12.3%
Poor physical health9.0%
No health insurance7.7%
Visited doctor (checkup)77.2%
Visited dentist72.7%
Cholesterol screening90.3%
Teeth loss10.0%

Veterans & disability

VeteransCount%
Civilian veterans906.0%
Disability%
Any disability8.6%
Under 181.8%
18–64 years8.6%
65 and over20.8%

Health insurance coverage

Type%
Private insurance88.8%
Public insurance23.5%
Uninsured under 190.0%

Language & origin

Language spoken at home (age 5+)

LanguageCount%
English only1,89493.2%
Spanish50.3%
Other Indo-European50.3%
Asian & Pacific Islander00.0%
Other languages00.0%

Place of birth & citizenship

OriginCount%
Native born (US)2,02399.6%
Born in same state2,01199.0%
Born in different state1,75386.3%
Foreign born120.6%
Naturalized citizen90.4%
Not a US citizen444.4%

Ancestry

AncestryCount%
Italian1979.7%
Arab1818.9%
French1607.9%
Polish1065.2%
AncestryCount%
Dutch562.8%
English371.8%
German40.2%

Technology access

Metric% of households
Computer access38.7%
Internet access95.9%

Source: U.S. Census Bureau, American Community Survey 2025 estimates.

Frequently asked questions
What ZIP codes does Janesville, IA have?
Janesville, IA has one ZIP code: 50647. Each ZIP code serves a distinct delivery area within the city and surrounding region.
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