Washington County, Indiana Population 2026
Updated April 2026 · US Census ACS 2023 5-Year Estimates · 57th-largest in Indiana
The population of Washington County, Indiana is 28,167 as of the 2023 American Community Survey, making it the 57th-largest county in Indiana. The median household income is $61,358, the median home value is $162,400, and the median age is 41.4.
The population of Washington County has grown 0.2% since 2010 (28,297 → 28,345), a +0.01% annualized rate.
28,167
Population
+0.01%
Annual growth
55
People / sq mi
$61,358
Median Income
$162,400
Median Home Value
Washington County covers 514 sq mi of land at 54.8 people per square mile.
About Washington County, IN
Homeownership is the standout figure in Washington County: 82.3% of homes are owner-occupied, higher than the national rate. With 28,167 residents, Washington County is a county in Indiana.
Median household income is $61,358, below the US median of $78,538. Poverty is relatively low for US counties at 7.0%, below the national 12.4%. Median home value is $162,400, with typical rent around $760.
Fewer adults hold degrees here than in most comparable places — 13.8%, below the national 35.0%. Around 6.8% of workers work from home, below the national 14.0%, and the average commute runs about 32 minutes each way.
The ownership rate anchors the housing story in Washington County, and tends to move with the age structure and home-value figures above.
Washington County Population History (2010-2024)
The county of Washington County had a population of 28,297 in 2010 and 28,345 in 2024, a 0.2% growth over 14 years. The peak was 28,345 in 2024. Average annual growth rate: 0.01%.
28,345
Population (2024)
28,297
Population (2010)
28,345
Peak (2024)
0.01%
Avg Annual Growth
| Year | Population |
|---|---|
| 2010 | 28,297 |
| 2011 | 28,201 |
| 2012 | 27,919 |
| 2013 | 27,788 |
| 2014 | 27,895 |
| 2015 | 27,784 |
| 2016 | 27,719 |
| 2017 | 27,780 |
| 2018 | 27,936 |
| 2019 | 28,063 |
| 2020 | 28,233 |
| 2021 | 28,137 |
| 2022 | 28,158 |
| 2023 | 28,189 |
| 2024 | 28,345 |
Race & Ethnicity
| White | 96.0% |
| Black or African American | 0.3% |
| Asian | 0.0% |
| Hispanic or Latino (any race) | 0.7% |
| Two or More Races | 0.0% |
Age & Sex
41.4
Median Age
50.3%
Female
49.7%
Male
18.1%
Age 65+
Age Distribution
Children (under 15): 18.5% · Seniors (65+): 18.1%
Income & Poverty
| Median household income | $61,358$-8,693 vs state |
| Mean household income | $74,773 |
| Per-capita income | $29,451 |
| Poverty rate | 7.0%-1.4% vs state |
| Unemployment rate | 2.2% |
| Employment-to-population | 58.7% |
Top Industries by Employment
The largest employment sector in Washington County is manufacturing, accounting for 23.5% of workers.
How residents commute
0.1%
Drive alone
0.7%
Carpool
77.8%
Public transit
6.8%
Work from home
32.0 min
Avg commute
Housing
$162,400$-39,200 vs state
Median home value
$760
Median rent
82.3%
Homeownership rate
12,162
Total housing units
90.4%
Occupied
9.6%
Vacant
17.7%
Renter-occupied
Social & access
91.7%
With health insurance
89.3%
With broadband internet
30.0%
Foreign-born
6.6%
Veterans (18+)
16.0%
With a disability
98.3%
Speak language other than English at home
Education
88.1%
High School+
13.8%
Bachelor's+
Largest cities in Indiana
Other counties in Indiana
Part of Indiana
Metro areas in Indiana
County rankings
Frequently Asked Questions
Washington County, Indiana has a population of 28,167 according to the US Census Bureau's 2023 American Community Survey 5-year estimates, making it the 57th-largest county in Indiana. Population density is 55 people per square mile.
The population of Washington County has grown 0.2% since 2010 (28,297 → 28,345), a +0.01% annualized rate.
The median household income in Washington County, Indiana is $61,358, with mean (average) household income of $74,773 and per-capita income of $29,451. 7.0% of residents live below the federal poverty level.
In Washington County, the largest racial and ethnic groups are White (96.0%), Hispanic or Latino (0.7%), Black or African American (0.3%). Figures are from the US Census Bureau's 2023 ACS 5-year estimates and reflect self-reported responses.
The median age in Washington County, Indiana is 41.4 years. Residents are 50.3% female and 49.7% male.
The median home value in Washington County is $162,400 and median monthly rent is $760. 82.3% of occupied housing units are owner-occupied. The county has 12,162 total housing units, 9.6% of which are vacant.
The largest employment sector in Washington County, Indiana is manufacturing, employing 23.5% of workers. The unemployment rate is 2.2%.
Indianapolis is among the largest cities associated with Washington County, Indiana, with a population of 882,043.
Washington County, IN Climate
Washington County, IN has an average annual temperature of 12°C (54°F) and receives about 1171 mm of precipitation per year. The warmest month is July and the coldest is January. Figures are 1970–2000 climate normals.
12°C
Avg Temp
1171
Precip (mm/yr)
Jul
Hottest Month
Jan
Coldest Month
| Month | Avg (°C/°F) | Precip |
|---|---|---|
| January | -1° / 29° | 81 mm |
| February | 1° / 33° | 77 mm |
| March | 6° / 43° | 108 mm |
| April | 12° / 53° | 118 mm |
| May | 17° / 63° | 124 mm |
| June | 22° / 71° | 102 mm |
| July | 24° / 75° | 111 mm |
| August | 23° / 74° | 101 mm |
| September | 20° / 67° | 78 mm |
| October | 13° / 56° | 77 mm |
| November | 7° / 45° | 101 mm |
| December | 1° / 35° | 93 mm |
1970–2000 normals from WorldClim 2.1 (~9 km grid). Precipitation can be less precise near mountains or coastlines, where rainfall varies sharply over short distances.
Best time to visit Washington County, IN
The most comfortable months to visit Washington County, IN are typically September, June and August, when temperatures are mildest and rainfall is relatively low. The hottest month is July (around 30°C high). The coldest is January (near -6°C low). May is usually the wettest month.
Where to stay near Washington County
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Data from the American Community Survey (ACS) 5-Year estimates.
Source: U.S. Census Bureau ACS, 2026.