CensusEasy
COUNTY · 2000 CENSUS

Ada County

Idaho · 300,904 residents · 1,052.016 sq mi
Time machine
COMPARE TO
Part of the Boise City metro area
Compare
The short version

Ada County has roughly average household income, with a median household income of $46,140. Population has grown 46% since 1990. Median home value has risen by half since 1990, reaching $122,400.

At a glance
Wealthier
above the US median
US median: $42,589
Younger
median age 32.8
US median: 35.2
More educated
31% hold a bachelor's degree
US average: 24%
Less affordable
home values up 32%, inflation adjusted
US median home: $120,530
Section 01

Population & growth

Total population
300,904
+46%since 1990
from 205,775 in 1990
1990 – 2025
Population density
286 / sq mi
+46%since 1990
from 196 / sq mi in 1990
US average: 242
Median age
32.8
+3%since 1990
from 31.9 in 1990
US average: 35.2
Population, 1990 – 2024
174K268K362K456K550K1990201020202024Ada County
2024519K
1990201020202024
Section 02

Income & economy

Median household income
$46,140
+16%inflation adjusted, since 1990
from $30,246 in 1990
US average: $42,589
1990 – 2024
Per capita income
$22,519
+58%since 1990
from $14,268 in 1990
US average: $21,522
Poverty rate
7.7%
−1.2 ptssince 1990
from 8.8% in 1990
US average: 12.4%
Section 03

Housing

Median home value
$122,400
+32%inflation adjusted, since 1990
from $70,400 in 1990
US average: $120,530
1990 – 2024
Median gross rent
$617
+17%inflation adjusted, since 1990
from $401 in 1990
US average: $602
Owner-occupied
70.7%
+1.6 ptssince 1990
from 69.1% in 1990
29.3% rent
Afford Score
2.7
+14%since 1990
from 2.3 in 1990
1990 – 2024
RELATED:See current rent listings in Ada County on RentDataNow
Section 04

Race & ethnicity

1990
White, non-Hispanic96.8%(199,254)
Black0.6%(1,161)
Hispanic / Latino2.5%(5,216)
Asian1.2%(2,386)
Diversity Score13.4%(27,572)
2000
White, non-Hispanic90.6%(272,569)
Black0.6%(1,829)
Hispanic / Latino4.5%(13,467)
Asian1.7%(5,140)
Diversity Score16.5%(49,713)
Diversity Score
17
+23%since 1990
from 13 in 1990
1990 – 2024
Section 05

Education

Bachelor's degree or higher
31.2%
+6.3 ptssince 1990
from 24.9% in 1990
US average: 24.4%
High school or higher
90.8%
+3.6 ptssince 1990
from 87.2% in 1990
US average: 80.3%
Graduate degree
9.5%
+2.1 ptssince 1990
from 7.4% in 1990
US average: 8.8%
Section 06

Commute & transportation

Average commute
11.4 min
−34%since 1990
from 17.2 min in 1990
US average: 17.6
Section 07

Work & employment

No data for the years selected.

Section 08

People & community

No data for the years selected.

Drill deeper

Places similar to Ada County

Camden County
Pop 535,799
New Castle County
Pop 588,026
Adams County
Pop 554,668
Delaware County
Pop 580,937
Places similar to Ada County
Head to head

Compare Ada County to nearby counties

ADA COUNTY VS
Canyon County
Income$76,488+66%
Home value$390,000+219%
Population275,123−50%
SEE FULL COMPARISON →
ADA COUNTY VS
Elmore County
Income$65,359+42%
Home value$316,500+159%
Population29,465−95%
SEE FULL COMPARISON →
ADA COUNTY VS
Gem County
Income$64,605+40%
Home value$428,700+250%
Population21,773−96%
SEE FULL COMPARISON →
ADA COUNTY VS
Boise County
Income$78,774+71%
Home value$476,100+289%
Population8,545−98%
SEE FULL COMPARISON →
Frequently asked

How many people live in Ada County, Idaho?

Ada County, Idaho has about 300,904 residents according to the 2000 Census.

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

The typical household in Ada County, Idaho earns about $46,140 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 $122,400, and the typical rent is about $617 a month.

How educated are people in Ada County, Idaho?

About 31.2% 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 7.7% 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 95,129 residents, a change of about 46 percent over that period.

Keep going

Explore from here

129 census tracts (top 20 by population)
Census Tract 105.01Census Tract 104.07Census Tract 101.02Census Tract 103.41Census Tract 102.29Census Tract 2.02Census Tract 103.42Census Tract 9.02Census Tract 102.30Census Tract 104.10Census Tract 103.54Census Tract 104.08Census Tract 103.67Census Tract 104.06Census Tract 24.16Census Tract 103.58Census Tract 103.37Census Tract 103.63Census Tract 103.64Census Tract 103.62
16 ZIP codes
ZIP 83646ZIP 83642ZIP 83709ZIP 83704ZIP 83634ZIP 83706ZIP 83616ZIP 83713ZIP 83714ZIP 83705ZIP 83702ZIP 83703ZIP 83669ZIP 83712ZIP 83720ZIP 83725
Up the hierarchy
All counties in Idaho
Rankings
Highest income countiesLowest poverty counties

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

How we source and harmonize this data →