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COUNTY · 2010 ACS

Ada County

Idaho · 392,365 residents · 1,052 sq mi
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The short version

Ada County is home to 392,365 people in Idaho. Growth has run 30% since 2000, or 91,461 more people. About 35% of adults have finished a four-year degree. Households here earn about 20% more than in Idaho as a whole. The foreign-born share is 6%. The average commute runs 19 minutes.

At a glance
Wealthier
above the US median
US median: $52,703
Younger
median age 34.8
US median: 37.2
More educated
35% hold a bachelor's degree
US average: 28%
Less affordable
home values up 38%, inflation adjusted
US median home: $225,659
Section 01

Population & growth

Total population
392,365
+30%since 2000
from 300,904 in 2000
1990 – 2025
Median age
34.8
+6%since 2000
from 32.8 in 2000
US average: 37.2
Land area
1,052 sq mi
Population, 1990 – 2024
174K268K362K456K550K19902000201020202024Ada County
2024519K
1990201020202024
Age distribution, 2010
Under 57.2%(28,357)
US avg: 6.5%
5 to 97.7%(30,064)
US avg: 6.6%
10 to 147.4%(28,846)
US avg: 6.7%
15 to 196.8%(26,503)
US avg: 7.1%
20 to 246.6%(25,712)
US avg: 7%
25 to 3414.7%(57,613)
US avg: 13.3%
35 to 4414.2%(55,825)
US avg: 13.3%
45 to 5414%(55,081)
US avg: 14.6%
55 to 6411%(43,316)
US avg: 11.8%
65 to 745.8%(22,789)
US avg: 7%
75 to 843.2%(12,414)
US avg: 4.2%
85 and over1.5%(5,845)
US avg: 1.8%
BAR + DOT: THIS PLACE · TICK: US AVERAGE
Section 02

Income & economy

Median household income
$55,835
−4%inflation adjusted, since 2000
from $46,140 in 2000
US average: $52,703
1990 – 2024
Per capita income
$27,915
+24%since 2000
from $22,519 in 2000
US average: $27,286
Households earning $100K+
34.4%
+0.2 ptssince 2009
from 34.2% in 2009
US average: 33.3%
Poverty rate
10.2%
+2.5 ptssince 2000
from 7.7% in 2000
US average: 13.8%
Income inequality (Gini)
0.435
US average: 0.461
Workforce by industry, 2010
Information12.2%
US avg: 11.5%
Retail trade10.4%
US avg: 10.9%
Other services7.7%
US avg: 7%
Wholesale trade7%
US avg: 7.2%
Public administration5.6%
US avg: 4.9%
Finance & insurance4.4%
US avg: 5.1%
Professional, scientific, technical3.4%
US avg: 4.2%
Transportation & warehousing3.2%
US avg: 3.1%
Arts, entertainment, food3%
US avg: 2.4%
Agriculture, forestry, fishing1.2%
US avg: 1.9%
Construction1%
US avg: 1.4%
Education & health services1%
US avg: 0.9%
Manufacturing0.2%
US avg: 0.5%
BAR + DOT: THIS PLACE · TICK: US AVERAGE
Section 03

Housing

Median home value
$214,500
+38%inflation adjusted, since 2000
from $122,400 in 2000
US average: $225,659
1990 – 2024
Median gross rent
$780
Unchangedinflation adjusted, since 2000
from $617 in 2000
US average: $853
Owner-occupied
68.5%
−2.2 ptssince 2000
from 70.7% in 2000
31.5% rent
Vacancy rate
6.5%
+0.3 ptssince 2009
from 6.2% in 2009
US average: 12.1%
Persons per household
2.55 people
Unchangedsince 2009
from 2.54 people in 2009
US average: 2.60
Owner cost-burdened
28.2%
+0.4 ptssince 2009
from 27.8% in 2009
US average: 30.9%
Renter cost-burdened
44.7%
+1.8 ptssince 2009
from 43.0% in 2009
US average: 46.8%
Afford Score
3.8
+3%since 2009
from 3.7 in 2009
2009 – 2024
Years of local income it takes to buy a local home, on a scale of about 0 to 15. Lower is more affordable.
Section 04

Race & ethnicity

2000
White, non-Hispanic90.6%(272,569)
Black0.6%(1,829)
Hispanic / Latino4.5%(13,467)
Asian1.7%(5,140)
Other0%
2010
White, non-Hispanic86.5%(339,332)
Black1.1%(4,180)
Hispanic / Latino7.1%(27,905)
Asian2.4%(9,234)
Other2.7%(10,421)

No data for the years selected.

Section 04 · Origins

Detailed origins & ancestry

Hispanic origin
Mexican5.5%(20,865)
South American0.3%(1,126)
Spaniard0.3%(1,115)
Puerto Rican0.2%(606)
Colombian0.1%(309)
Cuban0.1%(258)
Venezuelan0.1%(244)
Guatemalan0.1%(210)
Salvadoran0%(177)
Peruvian0%(171)
Chilean0%(143)
+ 8 more hispanic origin groups with data
Ancestry
German19.4%(73,889)
English15.9%(60,479)
Irish11.8%(44,984)
American8.6%(32,827)
Scottish3.7%(14,020)
Italian3.6%(13,729)
Norwegian3.5%(13,503)
French3.1%(11,816)
Swedish3%(11,512)
Scotch-Irish2.2%(8,235)
Dutch2%(7,714)
Polish1.7%(6,298)
+ 45 more ancestry groups with data
Danish1.6%(6,274)
Welsh1.6%(5,941)
Russian0.9%(3,269)
British0.7%(2,828)
Czech0.7%(2,661)
Swiss0.7%(2,590)
French Canadian0.6%(2,259)
Portuguese0.5%(2,005)
Canadian0.4%(1,439)
Greek0.3%(1,299)
Ukrainian0.3%(1,295)
Hungarian0.3%(1,266)
Finnish0.3%(1,245)
Austrian0.2%(747)
Arab0.2%(672)
Croatian0.2%(592)
Lithuanian0.1%(570)
Romanian0.1%(532)
Belgian0.1%(452)
Turkish0.1%(359)
Australian0.1%(342)
Slovak0.1%(283)
Somali0.1%(274)
Brazilian0.1%(250)
Armenian0.1%(245)
Lebanese0.1%(207)
Iranian0%(172)
Slovene0%(144)
Latvian0%(142)
Jamaican0%(112)
Syrian0%(103)
Serbian0%(99)
Ethiopian0%(91)
Egyptian0%(76)
Bulgarian0%(67)
Jordanian0%(60)
Israeli0%(39)
Haitian0%(35)
Guyanese0%(23)
Iraqi0%(19)
Nigerian0%(14)
Section 05

Education

Bachelor's degree or higher
35.0%
+3.9 ptssince 2000
from 31.2% in 2000
US average: 27.9%
High school or higher
92.9%
+2.1 ptssince 2000
from 90.8% in 2000
US average: 84.9%
Graduate degree
11.1%
+1.7 ptssince 2000
from 9.5% in 2000
US average: 10.2%
Section 06

Commute & transportation

Average commute
19.3 min
+70%since 2000
from 11.4 min in 2000
US average: 25.2
Drive alone to work
79.8%
−0.1 ptssince 2009
from 79.9% in 2009
US average: 76.2%
Carpooled to work
8.7%
−0.6 ptssince 2009
from 9.3% in 2009
US average: 10.4%
Public transit
0.6%
−0.1 ptssince 2009
from 0.7% in 2009
US average: 4.7%
Worked from home
5.2%
+0.5 ptssince 2009
from 4.7% in 2009
US average: 4.1%
Walked to work
1.9%
+0.1 ptssince 2009
from 1.8% in 2009
US average: 2.8%
Biked to work
2.4%
+0.2 ptssince 2009
from 2.1% in 2009
US average: 0.5%
No vehicle available
4.3%
+0.1 ptssince 2009
from 4.2% in 2009
US average: 8.7%
Section 07

Work & employment

Self-employed
11.1%
−0.1 ptssince 2009
from 11.2% in 2009
US average: 12.9%
Management & professional
41.1%
+0.9 ptssince 2009
from 40.1% in 2009
US average: 35.2%
Section 08

People & community

Male
50.1%
−0.2 ptssince 2009
from 50.4% in 2009
Female
49.9%
+0.2 ptssince 2009
from 49.6% in 2009
Foreign born
5.8%
−0.3 ptssince 2009
from 6.2% in 2009
US average: 12.8%
Veterans
11.6%
−0.5 ptssince 2009
from 12.2% in 2009
US average: 9.9%
Marital status (2024)
Men 15+
Never married33.6%(71,985)
Married54.4%(116,615)
Widowed1.9%(4,041)
Divorced10.1%(21,622)
Women 15+
Never married26.5%(56,309)
Married53.5%(113,636)
Widowed6.9%(14,717)
Divorced13.1%(27,865)
SHARE WITHIN EACH SEX · POPULATION 15 AND OVER · 2024
Section 09

Health coverage

Showing 2024 (the nearest year with coverage data).

Uninsured
6.4%
−6.6 ptssince 2013
from 13.0% in 2013
US average: 8.4%
Employer-based
61.0%
−1.0 ptssince 2020
from 62.0% in 2020
US average: 54.8%
Direct-purchase
16.2%
−1.2 ptssince 2020
from 17.4% in 2020
US average: 13.8%
Medicare
16.9%
+1.4 ptssince 2020
from 15.5% in 2020
US average: 18.4%
Medicaid
13.2%
+2.0 ptssince 2020
from 11.2% in 2020
US average: 20.9%
VA health care
2.7%
−0.1 ptssince 2020
from 2.8% in 2020
US average: 2.2%
Any private
76.2%
−2.6 ptssince 2020
from 78.8% in 2020
US average: 67.1%
Any public
29.4%
+3.8 ptssince 2020
from 25.6% in 2020
US average: 36.7%

Shares are "alone or in combination": a person with both Medicare and Medicaid counts in each, so categories overlap and do not sum to 100%.

Section 09 · Service history

Veterans

Veterans by period of service, 2024
Gulf War (2001 or later)30.7%(9,675)
US avg: 26.4%
Gulf War (1990s)27.9%(8,800)
US avg: 24.3%
Vietnam era30.4%(9,573)
US avg: 33.1%
Korean War3.2%(997)
US avg: 4.5%
World War II0.3%(79)
US avg: 1%

Share of the 31,500 veterans here. A veteran who served across eras counts in each, so shares can total more than 100%. Peacetime-only service is included in the total but not shown as an era.

BAR + DOT: THIS PLACE · TICK: US AVERAGE
Drill deeper

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Head to head

Compare Ada County to nearby counties

ADA COUNTY VS
Canyon County
Income$76,488+37%
Home value$390,000+82%
Population275,123−50%
SEE FULL COMPARISON →
ADA COUNTY VS
Elmore County
Income$65,359+17%
Home value$316,500+48%
Population29,465−95%
SEE FULL COMPARISON →
ADA COUNTY VS
Gem County
Income$64,605+16%
Home value$428,700+100%
Population21,773−96%
SEE FULL COMPARISON →
ADA COUNTY VS
Boise County
Income$78,774+41%
Home value$476,100+122%
Population8,545−98%
SEE FULL COMPARISON →
Frequently asked

How many people live in Ada County, Idaho?

Ada County, Idaho has about 392,365 residents according to the 2010 American Community Survey.

What is the median household income in Ada County, Idaho?

The typical household in Ada County, Idaho earns about $55,835 a year. Half of households make more than that, and half make less.

Is Ada County, Idaho expensive?

In Ada County, Idaho, the median home is worth about $214,500, and the typical rent is about $780 a month.

How educated are people in Ada County, Idaho?

About 35.0% of adults age 25 and over in Ada County, Idaho hold a bachelor's degree or higher.

What is the poverty rate in Ada County, Idaho?

About 10.2% of people in Ada County, Idaho live below the federal poverty line.

Has Ada County, Idaho grown since 1990?

Yes, Ada County, Idaho has grown since 1990. The population has added about 186,590 residents, a change of about 91 percent over that period.

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DATA: US CENSUS BUREAU ACS 5-YEAR + DECENNIAL CENSUS · UPDATED 2024

How we source and harmonize this data →