Janesville vs Sumner

A side-by-side comparison of Janesville and Sumner: population, income, housing, and more.

Janesville and Sumner are places in Iowa. This page compares them across population, income, housing, education, commuting, and how each has changed since 2019.

Sumner has the higher population (2,159 vs 1,012 in Janesville). Janesville has the higher median household income ($84,231 vs $56,174 in Sumner). Janesville has the higher median home value ($214,700 vs $111,900 in Sumner).

Population, income & housing

	Janesville	Sumner
Population	1,012	2,159
Median age	44.7 yrs	47.1 yrs
Median household income	$84,231	$56,174
Median home value	$214,700	$111,900
Median gross rent	$625	$598
Housing units	456	1,020
Homeownership rate	90.5%	77.5%
Bachelor's degree or higher	25.8%	26.1%
Unemployment rate	3.0%	2.7%

Trends (ACS 5-year, 2019–2023)

	Janesville	Sumner
Population	981 → 1,012 (+3.2%)	2,175 → 2,159 (-0.7%)
Median household income	$63,750 → $84,231 (+32.1%)	$64,018 → $56,174 (-12.3%)
Median home value	$167,200 → $214,700 (+28.4%)	$88,000 → $111,900 (+27.2%)
Median gross rent	$625 → $625 (+0.0%)	$644 → $598 (-7.1%)

Janesville

Population

9811,012

Median household income

$63,750$84,231

Median home value

$167,200$214,700

Median gross rent

$625$625

Sumner

Population

2,1752,159

Median household income

$64,018$56,174

Median home value

$88,000$111,900

Median gross rent

$644$598

Age & race/ethnicity

Age distribution (share)

	Janesville	Sumner
Under 5	7.2%	4.0%
5 to 17	17.0%	17.6%
18 to 24	4.4%	8.1%
25 to 34	12.0%	7.2%
35 to 44	9.9%	12.1%
45 to 54	12.7%	12.7%
55 to 64	20.6%	16.3%
65 to 74	12.3%	9.5%
75 and over	4.0%	12.6%

Race & ethnicity (share)

	Janesville	Sumner
White (non-Hispanic)	97.4%	94.7%
Black or African American	0.0%	1.4%
American Indian & Alaska Native	0.0%	0.0%
Asian	0.0%	0.0%
Native Hawaiian & Pacific Islander	0.0%	0.0%
Some other race	0.0%	0.0%
Two or more races	0.4%	2.7%
Hispanic or Latino	2.2%	1.3%

Educational attainment (age 25+)

Share of adults 25+

	Janesville	Sumner
No high school diploma	1.7%	4.5%
High school graduate	27.4%	34.2%
Some college or associate's	45.2%	35.2%
Bachelor's degree	22.4%	16.0%
Graduate or professional degree	3.3%	10.1%

Commute to work

How workers get to work (share)

	Janesville	Sumner
Drove alone	80.0%	85.8%
Carpooled	10.2%	1.9%
Public transit	0.0%	0.0%
Walked	3.6%	6.2%
Bicycle	0.0%	0.0%
Worked from home	6.2%	6.1%
Other means	0.0%	0.0%

Housing

Units in structure (share)

	Janesville	Sumner
1-unit, detached	86.6%	79.5%
1-unit, attached	3.7%	2.0%
2 to 4 units	5.5%	13.4%
5 to 19 units	1.1%	2.9%
20 or more units	0.0%	0.0%
Mobile home & other	3.1%	2.2%

Poverty & households

	Janesville	Sumner
Poverty rate	5.8%	11.8%
Average household size	2.54	2.30
Mean commute (minutes)	21	18
Median year structure built	1973	1946