Washington County, ID Population Statistics: Density Map Data
Analyze local population trends, population density map, housing costs, and the local economy.
Area Snapshot Statistics
Key statistics on population, economy, housing, and commuting compared to state and national averages. Explore interactive maps for deeper analysis.
Population: density and quick facts
| Metric | Washington County | Idaho Avg | U.S. Average |
|---|---|---|---|
| Population | 11,051 | 1,920,240 | 334,821,731 |
| Population density (per sq mi) | 7.5 | 23.0 | 85.8 |
| Population growth (%/yr) | 1.15% | 2.11% | 0.57% |
| Median age | 43.1 | 38.5 | 37.1 |
| Households | 4,089 | 693,697 | 128,459,983 |
Population in Washington County grew by 8.5% from 2009 to 2023, reaching 10,863 in 2023.
Population Growth 2009–2023
Race & Ethnicity
Economy
Washington County has a the economy index of D, which means it is barely prosperous.
| Metric | Washington County | Idaho Avg | U.S. Average |
|---|---|---|---|
| Median household income | $53,654 | $74,676 | $78,145 |
| Income growth (%/yr) | 5.34% | 6.16% | 5.07% |
| Unemployment rate | 4.7% | 3.7% | 5.2% |
The median household income in Washington County is about 28% lower than in Idaho.
Housing
| Metric | Washington County | Idaho Avg | U.S. Average |
|---|---|---|---|
| Median home price | $426,671 | $355,887 | $242,182 |
| Median rent | $918 | $1,150 | $1,342 |
| Homeownership rate | 73.3% | 72.4% | 65.1% |
The median home price in Washington County is about 38.7 years' worth of rent — buying at the median price costs roughly as much as paying the median rent of $918 per month for that long.
Commute Time & Mobility
Commuters in Washington County spend about 25 minutes on the road round trip each working day. Over a typical 250-day work year, that adds up to roughly 105 hours, about 4.4 full days, spent commuting.
| Metric | Washington County | Idaho Avg | U.S. Average |
|---|---|---|---|
| One-way commute (min) | 12.6 | 17.9 | 22.5 |
| Round-trip commute (min) | 25.3 | 35.9 | 44.9 |
| Yearly time spent (hours) | 105 | 149 | 187 |
| Estimated yearly cost | $3,266 | $4,633 | $5,803 |
| Work from home | 6.6% | 12.2% | 13.4% |
| Highway traffic (vehicles/day) | 3,348 | 4,714 | 8,813 |
| Local road traffic (vehicles/day) | 425 | 865 | 1,355 |
Fastest commutes among counties in
Idaho:
Lemhi County (8.9 min), Custer County (10.6 min), Madison County (11.8 min).
Slowest:
Camas County (43.9 min), Boise County (35.5 min), Lincoln County (32.8 min).
The average commute time in Washington County is 13 minutes, shorter than the 18 minutes in Idaho.
Estimated yearly cost applies a single national wage rule of thumb (U.S. Bureau of Labor Statistics average hourly earnings), not a measurement of wages in this area. Traffic volume figures come from proprietary Ticon and TrafficZoom data.
Education & Households
Washington County has a education index of D, which means it is barely educated.
| Metric | Washington County | Idaho Avg | U.S. Average |
|---|---|---|---|
| Bachelor's degree or higher | 16.2% | 27.1% | 31.6% |
| Average household size | 2.61 | 2.66 | 2.54 |
Highest education index among counties in
Idaho:
Latah County (0.4), Teton County (0.3), Ada County (0.3).
Lowest:
Clark County (0.1), Owyhee County (0.2), Lincoln County (0.2).
Health
Washington County has a health index of C, which means it is somewhat healthy.
| Metric | Washington County | Idaho Avg | U.S. Average |
|---|---|---|---|
| Life expectancy (years) | 78.5 | 79.5 | 78.3 |
| Self-rated poor health | 18.8% | 15.6% | 16.3% |
| Smokers | 18.3% | 17.6% | 19.0% |
Highest health index among counties in
Idaho:
Madison County (0.8), Latah County (0.8), Ada County (0.8).
Lowest:
Shoshone County (0.8), Washington County (0.8), Lincoln County (0.8).
Frequently Asked Questions
Common questions about Washington County, Idaho.
What is the population of Washington County, Idaho?
The population of Washington County, Idaho is 11,051, compared to the U.S. total of 334,821,731.
What is the population density of Washington County, Idaho?
The population density of Washington County, Idaho is 7.5 people per square mile, compared to the U.S. average of 85.8 people per square mile.
What is the median household income in Washington County, Idaho?
The median household income in Washington County, Idaho is $53,654, compared to the U.S. median of $78,145.
What is the median home price in Washington County, Idaho?
The median home price in Washington County, Idaho is $426,671, compared to the U.S. median of $242,182.
What is the unemployment rate in Washington County, Idaho?
The unemployment rate in Washington County, Idaho is 4.7%, compared to the U.S. average of 5.2%.