South Central Idaho, ID demographics:
population, income, and more

Total population
188,046
1.5% year-over-year change
Median household income
$69,593/yr
5.5% year-over-year change
Housing units
71,308
1.5% year-over-year change

South Central Idaho population

How many people live in South Central Idaho

South Central Idaho is home to 188,046 residents, according to the most recent Census data. Gender-wise, 50.4% of South Central Idaho locals are male, and 49.6% are female.

Total population
188,046
1.5% year-over-year change
Gender ratio
Male
50.4%
94,745
Female
49.6%
93,302
Value Percent YoY change
Male 94,745 50.4% 1.2%
Female 93,302 49.6% 1.8%
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 South Central Idaho is 36, with the population distributed as follows: about 22.5% are children under 15, then 14% are in the 15 to 24 age group. Adults between 25 and 44 make up 25.8% of the population, while another 21.8% fall into the 45 to 64 bracket. Finally, around 16% are 65 or older.

Median age
35.8
Age breakdown
Under 15
22.5%
15 to 24
14%
25 to 44
25.8%
45 to 64
21.8%
Over 65
16%
Value Percent YoY change
Under 15 42,240 22.5% -0.8%
15 to 24 26,332 14% 3.0%
25 to 44 48,422 25.8% 1.9%
45 to 64 41,049 21.8% 1.2%
Over 65 30,003 16% 3.2%
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 South Central Idaho, 88.2% of the population are US-born citizens, while 5% have gained naturalized citizenship. At the same time, 6.7% of residents are non-citizens. As for race, 72.8% of locals are Caucasian, 0.6% are African American and 0.7% have Asian roots. Another 1.2% are Indigenous American, 0.2% are Pacific Islanders, while 10.7% identify as another race. There’s also a share of 13.9% that includes residents with two or more races.

Citizenship
U.S.-born citizens
88.2%
Non-U.S.-born citizens
5%
Non-citizens
6.7%
Value Percent YoY change
U.S.-born citizens 165,946 88.2% 1.2%
Non-U.S.-born citizens 9,440 5% 6.3%
Non-citizens 12,661 6.7% 1.6%
Racial breakdown
White
72.8%
Black or African American
0.6%
American Indian and Alaska Native
1.2%
Asian
0.7%
Native Hawaiian and other Pacific Islander
0.2%
Two or more races
13.9%
Other
10.7%
Value Percent
White 136,934 72.8%
Black or African American 1,038 0.6%
American Indian and Alaska Native 2,178 1.2%
Asian 1,332 0.7%
Native Hawaiian and other Pacific Islander 299 0.2%
Two or more races 26,175 13.9%
Other 20,090 10.7%

Households in South Central Idaho

A peek inside South Central Idaho households

South Central Idaho has 67,267 households, with an average of 2 members in each. Of these, 71.8% are families, while the remaining 28.2% are made up of individuals living alone or with non-relatives, such as roommates.

Households stats

Total households
67,267
2.5% year-over-year change
Average people per household
2
Non-family households
18,984
Family households
48,283
Value Percent YoY change
Non-family households 18,984 28.2% 1.6%
Family households 48,283 71.8% 2.9%
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 South Central Idaho

The housing landscape of South Central Idaho

South Central Idaho's housing consists of 71,308 units, with 76.8% being detached single-family homes ideal for those wanting space. Attached options, including duplexes and townhouses, make up 2.5% 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 8.9% of the housing landscape.

Housing units
71,308
1.5% year-over-year change
Housing types
Value Percent
1 unit, detached 54,769 76.8%
1 unit, attached 1,767 2.5%
2 units 2,041 2.9%
3 or 4 units 2,871 4%
5 to 9 units 1,479 2.1%
10 to 19 units 621 0.9%
20 to 49 units 794 1.1%
50 or more units 449 0.6%
Mobile home 6,375 8.9%
Boat, RV, van, etc. 142 0.2%
Homes built since 2020
1,797
73.5% year-over-year change

The age of buildings in South Central Idaho

In South Central Idaho, the median construction year is 1976. About 10.7% of homes were built before the 1940s, with another 5.8% going up by 1949. Most development happened in the second half of the 20th century. Then, 14.3% of homes were added from 2000 to 2009, 10.3% between 2010 and 2019, and 2.5% are part of the newest wave of development.

Construction year breakdown by decade
Value Percent YoY change
Built in 1939 or earlier 7,655 10.7% -3.8%
Built between 1940 and 1949 4,098 5.8% -3.0%
Built between 1950 and 1959 6,407 9% 1.4%
Built between 1960 and 1969 5,241 7.4% -5.1%
Built between 1970 and 1979 13,699 19.2% 3.5%
Built between 1980 and 1989 6,394 9% 1.5%
Built between 1990 and 1999 8,514 11.9% 1.9%
Built between 2000 and 2009 10,184 14.3% -4.1%
Built between 2010 and 2019 7,321 10.3% 9.8%
Built in 2020 or later 1,797 2.5% 73.5%
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.

South Central Idaho occupancy rates

Out of the 67,267 occupied housing units in South Central Idaho, 71% are owner-occupied, while 29% are lived in by tenants. Meanwhile, 5.7% of all homes on the local market sit vacant.

Occupied housing units
67,267
2.5% year-over-year change
Occupancy breakdown
Renter occupied
19,526
Owner occupied
47,742
Value Percent YoY
change
Renter occupied 19,526 29% 3.2%
Owner occupied 47,742 71% 2.3%
Unoccupied housing units
5.7%
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.

South Central Idaho housing costs

Housing costs in South Central Idaho come to a median of $947 per month, while tenants specifically pay a median gross rent of $915.

Median housing costs per month
$947/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 South Central Idaho
$915/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 South Central Idaho

South Central Idaho education at a glance

About 40.4% of the population in South Central Idaho went to high school, while 24.4% pursued college studies. Another 10.6% earned an associate degree and 12% hold a bachelor’s. Meanwhile, 6.1% went even further, earning a master’s or doctorate.

Education level
Value Percent YoY change
No high school 8,872 6.5% 1.1%
High school diploma 55,019 40.4% 1.3%
College diploma 33,257 24.4% 1.0%
Associate degree 14,403 10.6% 6.9%
Bachelor's degree 16,289 12% 8.9%
Graduate degree 8,358 6.1% -5.6%
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 South Central Idaho

How much people earn in South Central Idaho

The average annual household income in South Central Idaho was $56,930 in 2024, the most recent annual data available, according to the U.S. Census Bureau. This marked a +4% change from the previous year. At the same time, the median income stood at $69,593, reflecting a +5.5% shift over the same period.

Average household income in South Central Idaho
$56,930/year
4.0% year-over-year change
Median household income in South Central Idaho
$69,593/year
5.5% year-over-year change

South Central Idaho income by age

In South Central Idaho, households led by residents aged 25 to 44 — usually in the early to mid stages of their careers — have a median income of $72,404. Those with someone between 45 and 64 in charge, often well established professionally, earn $84,167 overall. Younger households, where the main provider is under 25 and just starting out, report a median income of $55,058, while those led by someone over 65, many of whom may be retired, have about $47,500 in earnings. Overall, 87.8% of the locals in this community live above the poverty line.

Income breakdown by age
Value YoY change
Under 25 $55,058 2.7%
25 - 44 $72,404 4.7%
45 - 64 $84,167 4.2%
Over 65 $47,500 -1.4%
Above poverty level
161,069
Below poverty level
22,301
Value Percent YoY
change
Above poverty level 161,069 87.8% 1.3%
Below poverty level 22,301 12.2% 4.0%

Employment in South Central Idaho

Workforce and job types in South Central Idaho

66.2% of the working population are employed in professional or administrative positions, while 33.8% are in hands-on or service-based jobs. Also, 13.5% run their own businesses, 67.7% are employed by private companies, and 12.6% work in the public sector.

Workforce demographics

White collar
58,888
Blue collar
30,035
Value Percent YoY change
White collar 58,888 66.2% 3.8%
Blue collar 30,035 33.8% 0.9%
Employer type
Self employees
13.5%
Private companies
67.7%
Governmental workers
12.6%
Not for profit companies
6.2%
Value Percent YoY change
Self employees 12,022 13.5% -1.1%
Private companies 60,178 67.7% 3.3%
Governmental workers 11,164 12.6% 1.1%
Not for profit companies 5,560 6.2% 10.2%

Transportation in South Central Idaho

How people get around in South Central Idaho

In South Central Idaho, the average commute time is 197 minutes. Commuting methods vary: 98% of residents travel by personal vehicle and 1.4% prefer to walk, while the remaining share relies on public transit or on two wheelers to get from A to B.

Commute time
197 min
8.2% year-over-year change
Means of transportation
Value Percent YoY change
Car 78,582 98% 3.1%
Taxicab 119 0.2% 205.1%
Bus or trolleybus 59 0.1% -43.3%
Motorcycle 228 0.3% 38.2%
Bicycle 107 0.1% 1.9%
Walk 1,121 1.4% 2.9%
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 South Central Idaho by zipcode?

Zipcode Population Number of households Median income Average income
83301 63,592 24,066 $62,647 $85,307
83302 35 13 $108,281 $93,331
83311 903 236 $101,167 $98,756
83312 278 110 $57,155 $62,882
83314 670 297 $66,771 $77,139
83316 10,456 3,879 $69,593 $98,311
83318 19,459 6,676 $71,282 $94,724
83321 482 210 $60,000 $63,532
83323 1,984 578 $60,625 $83,702
83324 851 237 $70,066 $91,798

Find your place

Explore more communities

FAQs about South Central Idaho demographics 

What is the total population of South Central Idaho?

South Central Idaho has a total population of 188,046 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 +1.5% compared to a year ago.

What is the gender ratio in South Central Idaho?

The gender ratio in South Central Idaho is as follows:
  • 50.4% males (94,745 residents)
  • 49.6% females (93,302 residents)

What is the median age in South Central Idaho?

The median age in South Central Idaho is 35.8.

What is the age distribution of the population in South Central Idaho?

The age distribution in South Central Idaho is as follows:
  • Under 15: 22.5% (42,240 residents)
  • Ages 15-24: 14% (26,332 residents)
  • Ages 25-44: 25.8% (48,422 residents)
  • Ages 45-64: 21.8% (41,049 residents)
  • Over 65: 16% (30,003 residents)

What is the racial and ethnic makeup of South Central Idaho?

The racial and ethnic makeup of South Central Idaho is as follows:
  • White: 72.8% (136,934 residents)
  • Black or African American: 0.6% (1,038 residents)
  • American Indian and Alaska Native: 1.2% (2,178 residents)
  • Asian: 0.7% (1,332 residents)
  • Native Hawaiian and Other Pacific Islander: 0.2% (299 residents)
  • Two or More Races: 13.9% (26,175 residents)
  • Other: 10.7% (20,090 residents)

What percentage of the population in South Central Idaho are U.S.-born citizens?

U.S.-born citizens represent 88.2% of the population in South Central Idaho.

How many housing units are there in South Central Idaho?

There are 71,308 housing units in South Central Idaho, reflecting a +1.5% change compared to the previous year, according to the latest data from the U.S. Census Bureau.

How many households are in South Central Idaho and what is the average household size?

South Central Idaho has a total of 67,267 households, with an average of 2 people in each.

What is the median household income in South Central Idaho?

South Central Idaho has a median household income of $69,593, representing a +5.5% shift from the previous year, according to the U.S. Census Bureau.

What is the job market overview for South Central Idaho?

Here’s a detailed breakdown of the local job market:

Job types:
  • White-collar workers: 66.2% (58,888 residents)
  • Blue-collar workers: 33.8% (30,035 residents)

Places of employment:
  • Self-employed: 13.5% (12,022 residents)
  • Private companies: 67.7% (60,178 residents)
  • Governmental workers: 12.6% (11,164 residents)
  • Not-for-profit companies: 6.2% (5,560 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