Jerome County, ID demographics:
population, income, and more

Total population
25,173
1.6% year-over-year change
Median household income
$71,724/yr
3.4% year-over-year change
Housing units
8,810
1.0% year-over-year change

Jerome County population

How many people live in Jerome County

Jerome County is home to 25,173 residents, according to the most recent Census data. Gender-wise, 51.3% of Jerome County locals are male, and 48.7% are female.

Total population
25,173
1.6% year-over-year change
Gender ratio
Male
51.3%
12,916
Female
48.7%
12,257
Value Percent YoY change
Male 12,916 51.3% 0.9%
Female 12,257 48.7% 2.2%
A higher population often means more rental variety and livelier areas. The gender balance—how many men live here compared to women—can reveal a lot about the community and the lifestyles of its residents. Use this info to get a sense of the area's pace and personality.

Age demographics

The median age in Jerome County is 34, with the population distributed as follows: about 24% are children under 15, then 14.4% are in the 15 to 24 age group. Adults between 25 and 44 make up 26.1% of the population, while another 22.2% fall into the 45 to 64 bracket. Finally, around 13.4% are 65 or older.

Median age
34
Age breakdown
Under 15
24%
15 to 24
14.4%
25 to 44
26.1%
45 to 64
22.2%
Over 65
13.4%
Value Percent YoY change
Under 15 6,036 24% -0.2%
15 to 24 3,622 14.4% 3.3%
25 to 44 6,575 26.1% 2.2%
45 to 64 5,577 22.2% 1.5%
Over 65 3,363 13.4% 1.8%
The age composition helps you get insight into who lives in the area. A younger population might mean a more active, fast-paced vibe, while an older one could suggest a quieter, slower lifestyle. If there's a balanced makeup, you’re likely to find a variety of services, housing types, and community spaces that cater to different life stages.

Racial makeup

In Jerome County, 81.5% of the population are US-born citizens, while 4.7% have gained naturalized citizenship. At the same time, 13.8% of residents are non-citizens. As for race, 65.2% of locals are Caucasian, 0.1% are African American and 0.1% have Asian roots. There’s also a share of 19.4% that includes residents with two or more races.

Citizenship
U.S.-born citizens
81.5%
Non-U.S.-born citizens
4.7%
Non-citizens
13.8%
Value Percent YoY change
U.S.-born citizens 20,517 81.5% 2.0%
Non-U.S.-born citizens 1,172 4.7% 13.2%
Non-citizens 3,484 13.8% -4.0%
Racial breakdown
White
65.2%
Black or African American
0.1%
American Indian and Alaska Native
1.1%
Asian
0.1%
Native Hawaiian and other Pacific Islander
0%
Two or more races
19.4%
Other
14.2%
Value Percent
White 16,418 65.2%
Black or African American 30 0.1%
American Indian and Alaska Native 280 1.1%
Asian 14 0.1%
Two or more races 4,870 19.4%
Other 3,561 14.2%

Households in Jerome County

A peek inside Jerome County households

Jerome County has 8,277 households, with an average of 3 members in each. Of these, 78.6% are families, while the remaining 21.4% are made up of individuals living alone or with non-relatives, such as roommates.

Households stats

Total households
8,277
1.0% year-over-year change
Average people per household
3
Non-family households
1,772
Family households
6,505
Value Percent YoY change
Non-family households 1,772 21.4% -5.7%
Family households 6,505 78.6% 3.0%
The mix between family and non-family households gives a glimpse into daily life. A higher percentage of families might mean more parks and schools, while more non-family setups can mean flexible housing and diverse living styles. For renters, this can signal what kinds of homes are common and can help you figure out if the area matches your lifestyle.

Housing in Jerome County

The housing landscape of Jerome County

Jerome County's housing consists of 8,810 units, with 82.5% being detached single-family homes ideal for those wanting space. Attached options, including duplexes and townhouses, make up 1.8% and offer a more compact, shared living style. Then there are the multifamily buildings in the area, and for those seeking flexibility, non-traditional options like mobile homes account for 9.6% of the housing landscape.

Housing units
8,810
1.0% year-over-year change
Housing types
Value Percent
1 unit, detached 7,266 82.5%
1 unit, attached 161 1.8%
2 units 165 1.9%
3 or 4 units 198 2.2%
5 to 9 units 78 0.9%
10 to 19 units 16 0.2%
20 to 49 units 22 0.2%
50 or more units 63 0.7%
Mobile home 841 9.6%
Homes built since 2020
241
180.2% year-over-year change

The age of buildings in Jerome County

In Jerome County, the median construction year is 1983. About 8.2% of homes were built before the 1940s, with another 4.8% going up by 1949. Most development happened in the second half of the 20th century. Then, 16.3% of homes were added from 2000 to 2009, 12.3% between 2010 and 2019, and 2.7% are part of the newest wave of development.

Construction year breakdown by decade
Value Percent YoY change
Built in 1939 or earlier 721 8.2% -8.2%
Built between 1940 and 1949 427 4.8% -16.6%
Built between 1950 and 1959 791 9% 8.4%
Built between 1960 and 1969 572 6.5% 22.2%
Built between 1970 and 1979 1,638 18.6% 5.8%
Built between 1980 and 1989 963 10.9% -16.1%
Built between 1990 and 1999 937 10.6% -1.8%
Built between 2000 and 2009 1,435 16.3% -0.1%
Built between 2010 and 2019 1,085 12.3% 2.8%
Built in 2020 or later 241 2.7% 180.2%
As a renter, knowing when homes were built helps you understand the potential condition and design of rental units. Newer builds may have more contemporary layouts, while older homes can offer character or larger lots, depending on the area.

Jerome County occupancy rates

Out of the 8,277 occupied housing units in Jerome County, 75.2% are owner-occupied, while 24.8% are lived in by tenants. Meanwhile, 6% of all homes on the local market sit vacant.

Occupied housing units
8,277
1.0% year-over-year change
Occupancy breakdown
Renter occupied
2,049
Owner occupied
6,228
Value Percent YoY
change
Renter occupied 2,049 24.8% 1.9%
Owner occupied 6,228 75.2% 0.7%
Unoccupied housing units
6.0%
Unoccupied housing units refer to homes that are currently without residents—whether they're waiting for renters or owners, used seasonally, or simply unclaimed. A higher share of empty homes may mean more housing availability, while a low number can reflect a tighter market with more competition. This, along with the renter-vs.-owner mix, helps paint a clearer picture of what types of housing and services are likely to be available in the area.

Jerome County housing costs

Housing costs in Jerome County come to a median of $1,071 per month, while tenants specifically pay a median gross rent of $966.

Median housing costs per month
$1,071/month
This figure sums up typical monthly housing costs for all households in the area. If you own, it includes mortgage payments in addition to property taxes, insurance and HOA fees. If you rent, it accounts for rent plus extras like utilities. It’s useful for seeing how local living expenses stack up compared to other places.
Median gross rent in Jerome County
$966/month
Gross rent gives a more complete look at what renters actually pay, including not just base rent, but also utilities and fees. It’s a key number for evaluating rental affordability in your area of interest and understanding how it compares to nearby locations.

Education in Jerome County

Jerome County education at a glance

About 41.3% of the population in Jerome County went to high school, while 23.6% pursued college studies. Another 9.5% earned an associate degree and 9.3% hold a bachelor’s. Meanwhile, 3.3% went even further, earning a master’s or doctorate.

Education level
Value Percent YoY change
No high school 2,290 12.9% 1.1%
High school diploma 7,322 41.3% 1.3%
College diploma 4,184 23.6% 4.0%
Associate degree 1,677 9.5% -1.3%
Bachelor's degree 1,653 9.3% 11.3%
Graduate degree 586 3.3% -10.9%
A community’s education mix can offer insights into the local economy and housing market. Higher levels of education often align with more job opportunities and stable incomes, which can increase demand for homes and influence both rent prices and rental availability.

Income in Jerome County

How much people earn in Jerome County

The average annual household income in Jerome County was $89,909 in 2024, the most recent annual data available, according to the U.S. Census Bureau. This marked a +2.3% change from the previous year. At the same time, the median income stood at $71,724, reflecting a +3.4% shift over the same period.

Average household income in Jerome County
$89,909/year
2.3% year-over-year change
Median household income in Jerome County
$71,724/year
3.4% year-over-year change

Jerome County income by age

In Jerome County, households led by residents aged 25 to 44 — usually in the early to mid stages of their careers — have a median income of $71,547. Those with someone between 45 and 64 in charge, often well established professionally, earn $90,372 overall. Younger households, where the main provider is under 25 and just starting out, report a median income of $42,321, while those led by someone over 65, many of whom may be retired, have about $48,125 in earnings. Overall, 87.3% of the locals in this community live above the poverty line.

Income breakdown by age
Value YoY change
Under 25 $42,321 -24.3%
25 - 44 $71,547 5.9%
45 - 64 $90,372 3.0%
Over 65 $48,125 2.4%
Above poverty level
21,490
Below poverty level
3,132
Value Percent YoY
change
Above poverty level 21,490 87.3% 3.1%
Below poverty level 3,132 12.7% -6.7%

Employment in Jerome County

Workforce and job types in Jerome County

The job market in Jerome County is powered by 11,664 working residents, spread across a range of industries and roles. 58.8% of the working population are employed in professional or administrative positions, while 41.2% are in hands-on or service-based jobs. Also, 13.2% run their own businesses, 70.7% are employed by private companies, and 11.3% work in the public sector.

Workforce demographics

Working population
11,664
1.7% year-over-year change
White collar
6,863
Blue collar
4,801
Value Percent YoY change
White collar 6,863 58.8% -0.8%
Blue collar 4,801 41.2% 5.5%
Employer type
Self employees
13.2%
Private companies
70.7%
Governmental workers
11.3%
Not for profit companies
4.8%
Value Percent YoY change
Self employees 1,535 13.2% -11.1%
Private companies 8,249 70.7% 4.7%
Governmental workers 1,321 11.3% 9.5%
Not for profit companies 559 4.8% -14.4%
Unemployment rate
3.6%
-2.0% year-over-year change

Available workforce

The unemployment rate in Jerome County stands at 3.6%, representing the share of the workforce currently without a job and actively looking for one.

For renters, the unemployment rate helps paint a picture of job security and financial stability in the area. Rates around 4% to 5% are considered typical. A lower-than-average rate might suggest strong job prospects and a thriving local economy, while a higher rate could hint at fewer opportunities—both useful to consider when planning a move.

Transportation in Jerome County

How people get around in Jerome County

Commuting methods vary: 91.9% of residents travel by personal vehicle and 0.8% prefer to walk, while the remaining share relies on public transit or on two wheelers to get from A to B.

Means of transportation
Value Percent YoY change
Car 10,605 91.9% 0.8%
Bus or trolleybus 6 0% -66.7%
Motorcycle 36 0.3% 71.4%
Bicycle 10 0.1% N/A
Walk 94 0.8% 14.6%
Understanding how locals get to work can help you plan your own routine. High car usage might mean you’ll need a vehicle, while strong public transit or walkability could save you the hassle. Commute times also play a big role in quality of life—shorter trips can give you more time for the things you enjoy.

What is the median and average household income in Jerome County by zipcode?

Zipcode Population Number of households Median income Average income
83325 944 319 $76,375 $125,647
83335 2,335 772 $61,053 $82,423
83338 21,944 7,164 $72,072 $88,014
83347 3,465 1,168 $79,643 $87,633

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FAQs about Jerome County demographics 

What is the total population of Jerome County?

Jerome County has a total population of 25,173 residents, according to the latest release from the U.S. Census Bureau: the 2019-2023 American Community Survey (ACS) 5-year estimates. This figure changed by +1.6% compared to a year ago.

What is the gender ratio in Jerome County?

The gender ratio in Jerome County is as follows:
  • 51.3% males (12,916 residents)
  • 48.7% females (12,257 residents)

What is the median age in Jerome County?

The median age in Jerome County is 34.

What is the age distribution of the population in Jerome County?

The age distribution in Jerome County is as follows:
  • Under 15: 24% (6,036 residents)
  • Ages 15-24: 14.4% (3,622 residents)
  • Ages 25-44: 26.1% (6,575 residents)
  • Ages 45-64: 22.2% (5,577 residents)
  • Over 65: 13.4% (3,363 residents)

What is the racial and ethnic makeup of Jerome County?

The racial and ethnic makeup of Jerome County is as follows:
  • White: 65.2% (16,418 residents)
  • Black or African American: 0.1% (30 residents)
  • American Indian and Alaska Native: 1.1% (280 residents)
  • Asian: 0.1% (14 residents)
  • Native Hawaiian and Other Pacific Islander: 0% (0 residents)
  • Two or More Races: 19.4% (4,870 residents)
  • Other: 14.2% (3,561 residents)

What percentage of the population in Jerome County are U.S.-born citizens?

U.S.-born citizens represent 81.5% of the population in Jerome County.

How many housing units are there in Jerome County?

There are 8,810 housing units in Jerome County, reflecting a +1.0% change compared to the previous year, according to the latest data from the U.S. Census Bureau.

How many households are in Jerome County and what is the average household size?

Jerome County has a total of 8,277 households, with an average of 3 people in each.

What is the median household income in Jerome County?

Jerome County has a median household income of $71,724, representing a +3.4% shift from the previous year, according to the U.S. Census Bureau.

What is the employment rate and job market overview for Jerome County?

The employment rate is 96.4% in Jerome County, with a workforce of 11,664 residents. Here’s a detailed breakdown of the local job market:

Job types:
  • White-collar workers: 58.8% (6,863 residents)
  • Blue-collar workers: 41.2% (4,801 residents)

Places of employment:
  • Self-employed: 13.2% (1,535 residents)
  • Private companies: 70.7% (8,249 residents)
  • Governmental workers: 11.3% (1,321 residents)
  • Not-for-profit companies: 4.8% (559 residents)

Data source & methodology

The demographic data on this page was sourced from the latest U.S. Census Bureau release—the 2019–2023 American Community Survey (ACS) 5-year estimates.

The information, issued annually, is compiled and published by the Point2Homes Research Team as soon as new data becomes available.

No representation, guarantee, or warranty is made concerning the accuracy or completeness of modified or aggregated information for particular areas.

Page last updated: September 2025