County · Idaho

Canyon County, Idaho

Canyon County, Idaho. Canyon County had 275,123 residents in 2025 by the Census Bureau's estimate, up 19.0% since 2020, faster than Idaho (+10.4%). It holds 9 places (9 cities, villages and boroughs) and 54 census tracts. GEOID 16027.

Canyon County is one of the 5 counties of the Boise City, ID metropolitan statistical area (the Census Bureau's July 2023 delineation).

Residents, July 2025 estimate

275,123

Census Bureau estimate (no margin published)
2020 Census count: 231,105 · ACS 2020-2024: 250,790

Median household income

$76,488

±$1,853 (90% margin)
Idaho: $77,800

Median home value

$390,000

±$4,957 (90% margin)
Idaho: $418,600

Median gross rent

$1,347

±$33 (90% margin)
Idaho: $1,238

How many people live in Canyon County, and is it growing?

The 2020 Census counted 231,105 residents in Canyon County. The Census Bureau estimates 275,123 for July 1, 2025, up 19.0% since 2020, faster than Idaho (+10.4%). The 2020-2024 American Community Survey puts the population at 250,790 over 587 square miles of land.

  • July 2020→2021 +10,710 (243,711)
  • 2021→2022 +7,686 (251,397)
  • 2022→2023 +7,442 (258,839)
  • 2023→2024 +8,605 (267,444)
  • 2024→2025 +7,679 (275,123)
Canyon County in Idaho. Boundaries: Census Bureau 2024.
Counts, ACS 2020-2024 5-year estimates, with the change from 2015-2019
MeasureCanyon CountyIdahoChange since 2015-2019
Total population250,7901,934,262+33,157
Households86,069±584713,005+13,262
Average household size2.87±0.022.64−0.07
Housing units89,135±106795,014+12,888

Canyon County's population since 2000

From 131,441 in 2000 to 275,123 in 2025: up 109.3%. The 2000, 2010 and 2020 figures are census counts. The 2005 figure is the Census Bureau's intercensal estimate, revised to fit the 2000 and 2010 counts and drawn on 2010 boundaries; 2015 and 2025 are July 1 estimates made from the census before them.

  • 2000 Census 131,441
  • 2005 (estimate) 163,947
  • 2010 Census 188,923
  • 2015 (estimate) 206,956
  • 2020 Census 231,105
  • 2025 (estimate) 275,123

Source: The 2000, 2010 and 2020 Census counts and the Census Bureau's population estimates (intercensal 2000-2010, Vintage 2020, Vintage 2025) · Census population estimates

Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026); PEP Vintage 2025 (CO-EST2025); 2020 Census · Check it at data.census.gov

What cities and towns are in Canyon County?

Canyon County holds 9 places: 9 cities, villages and boroughs (incorporated places). The largest is Nampa with 120,384 residents (2025 estimate). Places that cross a county line are listed with the share of their 2020 residents who live in this county.

Places in Canyon County, ACS 2020-2024 5-year estimates. Ring: estimate with a coefficient of variation over 40%.
Nampacity100,200110,319±105$74,279$370,80011.5%100%
Caldwellcity59,99666,516±50$73,058$367,30011.9%100%
Middletoncity9,42510,649±28$89,013$403,1007.9%100%
Parmacity2,0961,928±371$49,231$274,30021.3%100%
Wildercity1,5972,074±350$55,117$270,90030.2%100%
Greenleafcity8121,482±408$69,141$363,70011.8%100%
Notuscity609573±179$64,813$287,00016.2%100%
Melbacity572617±212$45,750$301,20013.9%100%
Starcity11,11714,745±54$97,936$564,3005.8%0%

Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026); 2020 place-by-county parts · Check it at data.census.gov

Who lives in Canyon County?

The median resident of Canyon County is 34.9 years old; 26.7% are under 18 and 14.5% are 65 or older. The largest group is non-Hispanic white residents at 67.1%, then Hispanic or Latino residents (of any race) at 26.0%. 8.7% of residents were born outside the United States.

Age, origin and education, ACS 2020-2024 5-year estimates. Race groups are non-Hispanic; Hispanic includes any race.
MeasureCanyon CountyIdahoChange since 2015-2019
Median age34.9±0.137.3+1.3
Under 18 years26.7%24.1%–
65 years and over14.5%±0.1 pts17.0%–
Hispanic or Latino (any race)26.0%13.6%+0.7 pts
White alone, not Hispanic67.1%±0.5 pts78.6%−3.2 pts
Black or African American alone, not Hispanic0.7%±0.1 pts0.7%+0.3 pts
Asian alone, not Hispanic0.8%±0.1 pts1.3%no clear change
American Indian and Alaska Native alone, not Hispanic0.3%±0.1 pts0.7%–
Native Hawaiian and Other Pacific Islander alone, not Hispanic0.2%±0.1 pts0.1%–
Two or more races, not Hispanic4.0%±0.4 pts4.2%–
Some other race alone, not Hispanic0.9%±0.3 pts0.6%–
Born outside the United States8.7%±0.5 pts5.9%+0.8 pts
Speak a language other than English at home (age 5+)19.2%±0.8 pts11.0%–
Civilian veterans (age 18+)8.4%±0.6 pts8.0%–
With a disability14.8%±0.7 pts14.1%–
No health insurance coverage12.3%±0.9 pts9.1%−1.3 pts
High school graduate or higher (age 25+)87.7%±0.7 pts91.9%–
Bachelor's degree or higher (age 25+)23.2%±1.3 pts31.8%+4.5 pts
Graduate or professional degree (age 25+)6.9%±0.6 pts10.5%–
Moved from another state in the past year3.3%±0.5 pts4.6%–

Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profiles DP02, DP05) · Check it at data.census.gov

What do households in Canyon County earn?

Half of Canyon County's 86,069 households earn less than $76,488 a year (±$1,853), against $77,800 in Idaho. In 2015-2019 the median was $64,161 in 2024 dollars, so it rose by $12,327 after inflation. 10.5% of residents live below the poverty line.

Income and poverty in 2024 dollars, ACS 2020-2024 5-year estimates
MeasureCanyon CountyIdahoChange since 2015-2019
Median household income$76,488±$1,853$77,800+$12,327
Mean household income$93,734±$2,609$102,747–
Per capita income$32,651±$882$38,952+$5,290
People below the poverty line10.5%±0.9 pts10.6%−2.9 pts
Children under 18 below the poverty line13.1%±1.7 pts12.4%no clear change
Households receiving SNAP8.6%±0.8 pts7.6%–
Households with a broadband subscription93.4%±0.6 pts91.9%–

Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profile DP03) · Check it at data.census.gov

What does housing cost in Canyon County?

Owners occupy 75.5% of Canyon County's occupied homes and renters 24.5%. The median owner-occupied home is valued at $390,000 by its owner (±$4,957). The median renter pays $1,347 a month including utilities, and 36.1% of renters pay 35% or more of their income on rent.

Housing, ACS 2020-2024 5-year estimates
MeasureCanyon CountyIdahoChange since 2015-2019
Median home value (owner-occupied)$390,000±$4,957$418,600+$170,567
Median gross rent$1,347±$33$1,238+$244
Renters paying 35% or more of income on rent36.1%±2.7 pts36.9%no clear change
Median monthly owner costs, with a mortgage$1,651±$35$1,687–
Owner-occupied homes75.5%±1.2 pts72.1%+6.0 pts
Housing units89,135±106795,014+12,888
Homeowner vacancy rate0.5%±0.2 pts0.7%–
Rental vacancy rate3.9%±1.4 pts3.9%–
Single-family detached homes79.0%±1.0 pts73.8%–
Mobile homes6.7%±0.7 pts6.9%–
Built 2020 or later6.3%±0.5 pts3.9%–
Built 1939 or earlier7.0%±0.6 pts7.9%–

Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profile DP04) · Check it at data.census.gov

How many new homes is Canyon County building?

Builders took permits for 3,929 new housing units across Canyon County in 2025 (3,045 single-family), 14.3 per 1,000 residents.

  • 2019 3,320 units
  • 2020 3,395 units
  • 2021 4,257 units
  • 2022 3,590 units
  • 2023 3,550 units
  • 2024 3,609 units
  • 2025 3,929 units

Source: Building Permits Survey, annual county files 2019-2025, U.S. Census Bureau · Census Building Permits Survey

How do people in Canyon County get to work?

73.5% of Canyon County's workers drive alone and 13.0% work from home. The average trip to work takes 25.3 minutes. The unemployment rate in 2020-2024 averaged 3.7%.

Work and commuting, ACS 2020-2024 5-year estimates
MeasureCanyon CountyIdahoChange since 2015-2019
In the labor force (age 16+)64.8%±0.9 pts63.0%–
Unemployment rate3.7%±0.4 pts3.7%−1.9 pts
Drove alone to work73.5%±1.3 pts72.7%–
Carpooled10.0%±0.8 pts8.9%–
Public transportation0.1%±0.1 pts0.5%–
Walked1.7%±0.3 pts2.6%–
Worked from home13.0%±1.1 pts13.3%+7.4 pts
Mean travel time to work25.3 min±0.521.6 minno clear change

Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profile DP03) · Check it at data.census.gov

What are Canyon County's census tracts?

Canyon County is divided into 54 census tracts. Among those with a reliable estimate, median household income runs from $39,185 (Tract 201) to $130,284 (Tract 219.06).

All 54 census tracts of Canyon County, with their figures

Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) · Check it at data.census.gov

How does Canyon County compare with Idaho's other counties?

Canyon County's rank among Idaho's counties with a reliable estimate (1 = highest)
MeasureRank
Population2nd of 44
Growth 2020-20252nd of 44
Residents per square mile2nd of 44
Median household income9th of 44
Median home value12th of 44
Median gross rent3rd of 44
Poverty rate28th of 43
Bachelor's degree or higher21st of 44
Median age33rd of 44

Every county in Idaho

Source: PlainCities ranks from the American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) and PEP Vintage 2025 · How ranks are computed

How these figures are made: methodology and release checks · reading a margin of error · every state · corrections

Not on this page: crime, weather and schools for Canyon County are other agencies' records. Crime: the FBI's Crime Data Explorer · climate: NOAA's U.S. Climate Normals · schools: the National Center for Education Statistics' school search.