• county
  • FIPS 16053
  • Largest town: Jerome

Jerome County, Idaho

Jerome County had 26,056 residents in the Census Vintage 2024 estimate, on 597.5 square miles of land. It ranks 15th of 44 in Idaho by population and 38th by land area.

Population
26,056
#15 of 44 in Idaho · #1,580 in US
Area
597.5 sq mi
#38 of 44 in Idaho · #1,636 in US
Density
44 / sq mi
#10 of 44 in Idaho · #1,594 in US
Median household income
$62,543
#30 of 44 in Idaho · #1,599 in US

Census Vintage 2024 estimates · SAIPE 2023 income · 2024 Gazetteer land area

Jerome County within Idaho. Pin: Boise.

Measure from here

Tools and pages that start from Jerome County

Jerome County population, land area and income

Jerome County had 26,056 residents in the Census Vintage 2024 estimate, on 597.5 square miles of land. It ranks 15th of 44 in Idaho by population and 38th by land area. That works out to 43.6 people per square mile, below the US average of 96.3, and below the national county median.

The median county-equivalent in Idaho has 15,019 residents; Jerome County is somewhat larger.

Its SAIPE 2023 median household income of $62,543 is below the national county median among 3,143 counties with an estimate.

National rank among 3,144

Population

26,056

3144th1st

1580th of 3,144 (US)

Land area

598 sq mi

3144th1st

1636th of 3,144 (US)

Density

43.6 / sq mi

3144th1st

1594th of 3,144 (US)

Median household income

$62,543

3143rd1st

1599th of 3,143 (US)

Rank within Idaho (44)

Population

26,056

44th1st

15th of 44 (ID)

Land area

598 sq mi

44th1st

38th of 44 (ID)

Density

43.6 / sq mi

44th1st

10th of 44 (ID)

Median household income

$62,543

44th1st

30th of 44 (ID)

How Jerome County's population changed since 2020

Jerome County gained 1,788 residents between the July 2020 and July 2024 estimates, a rise of 7.4%. That ranks 21st of 44 in Idaho for growth. The median Idaho county changed by +7.2%, and the state as a whole by +8.2%.

Since the April 2020 estimates base, Jerome County recorded 1,532 births and 913 deaths, a natural change of +619. Net international migration added +660 and net domestic migration, people moving to or from other US counties, came to +530. The largest single component was international migration, which added 660 people.

24.3k202024.7k202125.2k202225.6k202326.1k2024
Census Vintage 2024 county estimates for July 1 of each year. The axis starts above zero so year-to-year changes are visible.

Components of change, April 2020 to July 2024

Births
1,532
Deaths
913
Net international migration
+660
Net domestic migration
+530
Change, July 2023 to July 2024
+482

Where Jerome County is

The Census internal point of Jerome County is at 42.691400, -114.262100. It sits in UTM zone 11N. The map shades Idaho's 44 county-equivalents by population change from 2020 to 2024, darker for faster growth, with Jerome County outlined. Dots are towns of 1,000+ people with residents in it.

Madison County: +5.0%Idaho County: +8.0%Benewah County: +9.9%Gooding County: +3.4%Lincoln County: +8.2%Minidoka County: +4.7%Custer County: +7.7%Boundary County: +15.6%Lemhi County: +5.5%Twin Falls County: +6.8%Franklin County: +9.5%Oneida County: +9.0%Gem County: +13.4%Shoshone County: +6.6%Fremont County: +7.3%Clearwater County: +4.6%Kootenai County: +9.0%Cassia County: +4.9%Blaine County: +3.8%Clark County: +0.1%Jerome County: +7.4%Bonner County: +13.8%Elmore County: +3.7%Caribou County: +3.2%Bonneville County: +7.1%Jefferson County: +12.1%Power County: +6.3%Lewis County: +5.8%Nez Perce County: +1.7%Ada County: +7.5%Adams County: +12.9%Valley County: +7.9%Bingham County: +5.8%Bannock County: +4.3%Owyhee County: +6.2%Washington County: +9.3%Latah County: +6.4%Teton County: +10.2%Camas County: +15.0%Boise County: +12.0%Bear Lake County: +6.5%Butte County: +5.9%Canyon County: +14.5%Payette County: +8.1%
Change 2020 to 2024
  1. < +4.7%
  2. < +6.4%
  3. < +7.7%
  4. < +9.9%
  5. ≥ +9.9%
no data

Orange pin: Jerome County internal point. Dark pin: Boise.

Internal point

Decimal
42.691400, -114.262100
DMS
42°41'29.04"N 114°15'43.56"W
UTM
11N 724282.3E 4730181.1N
Geohash
9rwdzgszk
Plus code
85J7MPRQ+H5

Towns in Jerome County

One incorporated place of 1,000+ people has residents in Jerome County, 13,481 people together, or 52% of the county. Each figure counts only the part of the town inside Jerome County; towns marked "part" extend into another county. The largest is Jerome with 13,481.

  1. 01Jerome13,481
Census Vintage 2024 subcounty estimates, county parts of incorporated places (SUMLEV 157).

Counties bordering Jerome County

The Census 2024 county adjacency file lists 5 neighbors for Jerome County. The most populous is Twin Falls County, ID, with 96,509 residents. Distances run between Census internal points in a straight line.

Distance to Boise and the nearest big city

Boise is 117.4 miles WNW of Jerome County's internal point in a straight line. The nearest place of 100,000 or more is Boise City, ID (population 237,963), 117.4 miles away. The nearest place of 10,000 or more is Jerome, ID (population 13,481), 13.0 miles away.

Jerome County FIPS code

The FIPS code of Jerome County is 16053: state code 16 for Idaho plus county code 053. Use it as text, with the leading zero, when joining Census, BLS, or CDC county tables. SAIPE lists its 2023 median household income as $62,543.

Questions people ask

What is the population of Jerome County, Idaho?

The Census Vintage 2024 estimate for July 1, 2024 is 26,056. That is up 1,788 people (7.4%) from the July 2020 estimate of 24,268.

What is the FIPS code of Jerome County?

16053. The first two digits (16) are Idaho; the last three (053) identify the county.

What is the largest town in Jerome County?

Jerome, with 13,481 residents inside Jerome County in 2024.

Which counties border Jerome County?

5 county-equivalents border it in the Census 2024 adjacency file: Twin Falls County, ID; Cassia County, ID; Minidoka County, ID; Gooding County, ID; Lincoln County, ID.

Sources and data as of

Data as of: Census Vintage 2024 population estimates, 2024 Gazetteer land area and internal points, SAIPE 2023 median household income.

  1. 01Census Vintage 2024 county population estimates
  2. 02Census 2024 Gazetteer, counties
  3. 03Census SAIPE 2023 state and county estimates
  4. 04Census Vintage 2024 subcounty population estimates
  5. 05Census 2024 county adjacency file
  6. 06Census 2024 cartographic boundary file, counties (1:5,000,000)

How every number is computed: methodology. Spotted a wrong figure? Report an error.