Caldwell, Idaho Population 2026

Updated April 2026 · US Census ACS 2023 5-Year Estimates

The population of Caldwell, Idaho is 63,465 as of the 2023 American Community Survey, making it the 5th-largest city in Idaho. The median household income is $66,663, the median home value is $322,100, and the median age is 30.8.

The population has grown 57.1% since 2010 (46,535 → 73,088).

63,465

Population

2525

People / sq mi

$66,663

Median Income

$322,100

Median Home Value

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Caldwell covers 25.1 sq mi of land at 2525 people per square mile.

About Caldwell, ID

Age is the most distinctive thing about Caldwell: a median age of 30.8, younger than the national median. With 63,465 residents, Caldwell is a city in Idaho. That makes it one of the ten largest cities in Idaho in the country, at #5 by population.

The typical household here earns about $66,663, below the US median of $78,538. The poverty rate is 10.1%, below the national 12.4%. Median home value is $322,100, with typical rent around $1,135.

College attainment is 17.8%, below the national 35.0%. About 11.6% of the workforce is home-based, below the national 14.0%, and the average commute runs about 25 minutes each way.

Caldwell city Population History (2010-2024)

The city of Caldwell city had a population of 46,535 in 2010 and 73,088 in 2024, a 57.1% growth over 14 years. The peak was 73,088 in 2024. Average annual growth rate: 3.29%.

Caldwell city population, 2010–2024 · Source: U.S. Census Bureau — decennial census & Population Estimates

73,088

Population (2024)

46,535

Population (2010)

73,088

Peak (2024)

3.29%

Avg Annual Growth

Year	Population	Change	Annual %	Source
2010	46,535	-	-	estimate
2011	47,271	+736	+1.58%	estimate
2012	47,708	+437	+0.92%	estimate
2013	48,964	+1,256	+2.63%	estimate
2014	50,122	+1,158	+2.37%	estimate
2015	51,543	+1,421	+2.84%	estimate
2016	53,106	+1,563	+3.03%	estimate
2017	54,738	+1,632	+3.07%	estimate
2018	56,478	+1,740	+3.18%	estimate
2019	58,481	+2,003	+3.55%	estimate
2020	60,743	+2,262	+3.87%	estimate
2021	63,962	+3,219	+5.30%	estimate
2022	66,129	+2,167	+3.39%	estimate
2023	68,708	+2,579	+3.90%	estimate
2024	73,088	+4,380	+6.37%	estimate

Race & Ethnicity

White	63.7%
Black or African American	0.4%
Asian	0.0%
Hispanic or Latino (any race)	3.8%
Two or More Races	0.1%

Economy & Income

$66,663

Median Household Income

$25,166

Per Capita Income

10.1%

Poverty Rate

3.3%

Unemployment Rate

Housing

$322,100

Median Home Value

$1,135

Median Rent

70.7%

Owner-Occupied

Education

83.5%

High School+

17.8%

Bachelor's+

Commute

0.3%

Drive Alone

73.8%

Public Transit

11.6%

Work From Home

24.5 min

Avg Commute

Community Profile

41.7%

Foreign Born

72.3%

Non-English at Home

7.9%

Veterans

14.9%

With Disability

86.7%

Health Insurance

95.2%

Internet Access

Employment by Industry

Professional, Scientific & Management	21.5%
Construction	12.8%
Manufacturing	11.1%
Finance, Insurance & Real Estate	9.5%
Education, Health Care & Social Services	8.3%
Retail Trade	6.6%
Arts, Entertainment & Food Services	5.6%
Public Administration	3.3%
Information	3.2%
Agriculture & Mining	3.2%
Transportation & Warehousing	1.5%

Largest cities in Idaho

Boise City (235,701)Meridian (124,865)Nampa (106,289)Idaho Falls (66,672)Pocatello (57,152)Coeur d'Alene (55,558)Twin Falls (53,219)Post Falls (41,716)Rexburg (39,589)Lewiston (34,471)View all Idaho cities →

Largest counties in Idaho

Ada County (508,052)Canyon County (242,405)Kootenai County (177,736)Bonneville County (127,056)Twin Falls County (92,121)

Part of Idaho

Idaho demographic profile All Idaho data →

Metro areas in Idaho

Boise City (790,640)Coeur d'Alene (177,736)Idaho Falls (161,944)Logan (151,746)Twin Falls (116,909)Pocatello (88,457)Lewiston (64,901)All US metros →

City rankings

US Cities by Population Cities With Highest Median Income Expensive US Cities by Home Value Youngest US Cities by Median Age Racially Diverse US Cities Cities With Highest Rent Educated US Cities Cities With Highest Work From Home Rates Cheapest US Cities by Median Home Value Cities With Lowest Rent All rankings →

Frequently Asked Questions

Caldwell, Idaho has a population of 63,465 according to the US Census Bureau's 2023 American Community Survey 5-year estimates, making it the 5th-largest city in Idaho.

The median household income in Caldwell, Idaho is $66,663, with 10.1% of residents living below the federal poverty level.

The median home value in Caldwell, Idaho is $322,100, with median monthly rent at $1,135 and a homeownership rate of 70.7%.

The median age in Caldwell, Idaho is 30.8 years. The population is 49.7% male and 50.3% female.

The population has grown 57.1% since 2010 (46,535 → 73,088).

Where to stay in Caldwell

Visiting or relocating to Caldwell, ID? Compare hotels and short-term rentals across the metro — live availability and prices.

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More from Idaho

Population 235,701

Population 124,865

Population 106,289

Population 66,672

Population 57,152

Full rankings of Idaho cities by population

Idaho demographic profile

Statewide data for Idaho

Idaho demographics 2026 — complete guide

Population, race, income, age, and trends across Idaho

Sources: US Census Bureau ACS 5-Year Estimates

Data from the American Community Survey (ACS) 5-Year estimates.

Source: U.S. Census Bureau ACS, 2026.