Fairfield, ID demographics:
population, income, and more

Total population
499
-3.9% year-over-year change
Median household income
$71,250/yr
-8.6% year-over-year change
Housing units
202
-4.3% year-over-year change

Fairfield population

How many people live in Fairfield

Fairfield is home to 499 residents, according to the most recent Census data. Gender-wise, 39.5% of Fairfield locals are male, and 60.5% are female.

Total population
499
-3.9% year-over-year change
Gender ratio
Male
39.5%
197
Female
60.5%
302
Value Percent YoY change
Male 197 39.5% 3.1%
Female 302 60.5% -7.9%
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 Fairfield is 36, with the population distributed as follows: about 24.6% are children under 15, then 7% are in the 15 to 24 age group. Adults between 25 and 44 make up 37.5% of the population, while another 18.4% fall into the 45 to 64 bracket. Finally, around 12.4% are 65 or older.

Median age
35.7
Age breakdown
Under 15
24.6%
15 to 24
7%
25 to 44
37.5%
45 to 64
18.4%
Over 65
12.4%
Value Percent YoY change
Under 15 123 24.6% -14.0%
15 to 24 35 7% -7.9%
25 to 44 187 37.5% 2.2%
45 to 64 92 18.4% 2.2%
Over 65 62 12.4% -4.6%
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 Fairfield, 98.2% of the population are US-born citizens, while 0.8% have gained naturalized citizenship. At the same time, 1% of residents are non-citizens. There’s also a share of 16.8% that includes residents with two or more races.

Citizenship
U.S.-born citizens
98.2%
Non-U.S.-born citizens
0.8%
Non-citizens
1%
Value Percent YoY change
U.S.-born citizens 490 98.2% -5.6%
Non-U.S.-born citizens 4 0.8% N/A
Non-citizens 5 1% N/A
Racial breakdown
White
68.7%
Black or African American
0%
American Indian and Alaska Native
4.2%
Asian
0%
Native Hawaiian and other Pacific Islander
0%
Two or more races
16.8%
Other
10.2%
Value Percent
White 343 68.7%
American Indian and Alaska Native 21 4.2%
Two or more races 84 16.8%
Other 51 10.2%

Households in Fairfield

A peek inside Fairfield households

Fairfield has 140 households, with an average of 4 members in each. Of these, 56.4% are families, while the remaining 43.6% are made up of individuals living alone or with non-relatives, such as roommates.

Households stats

Total households
140
-0.7% year-over-year change
Average people per household
4
Non-family households
61
Family households
79
Value Percent YoY change
Non-family households 61 43.6% -10.3%
Family households 79 56.4% 8.2%
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 Fairfield

The housing landscape of Fairfield

Fairfield's housing consists of 202 units, with 82.7% being detached single-family homes ideal for those wanting space. Then there are the multifamily buildings in the area, and for those seeking flexibility, non-traditional options like mobile homes account for 11.4% of the housing landscape.

Housing units
202
-4.3% year-over-year change
Housing types
Value Percent
1 unit, detached 167 82.7%
3 or 4 units 12 5.9%
Mobile home 23 11.4%
Homes built since 2020
0
% year-over-year change

The age of buildings in Fairfield

In Fairfield, the median construction year is 1973. About 28.7% of homes were built before the 1940s, with another 5% going up by 1949. Most development happened in the second half of the 20th century.

Construction year breakdown by decade
Value Percent YoY change
Built in 1939 or earlier 58 28.7% 7.4%
Built between 1940 and 1949 10 5% -9.1%
Built between 1950 and 1959 12 5.9% -14.3%
Built between 1960 and 1969 13 6.4% 8.3%
Built between 1970 and 1979 32 15.8% -13.5%
Built between 1980 and 1989 9 4.5% 12.5%
Built between 1990 and 1999 49 24.3% 8.9%
Built between 2000 and 2009 3 1.5% -76.9%
Built between 2010 and 2019 16 7.9% -5.9%
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.

Fairfield occupancy rates

Out of the 140 occupied housing units in Fairfield, 68.6% are owner-occupied, while 31.4% are lived in by tenants. Meanwhile, 30.7% of all homes on the local market sit vacant.

Occupied housing units
140
-0.7% year-over-year change
Occupancy breakdown
Renter occupied
44
Owner occupied
96
Value Percent YoY
change
Renter occupied 44 31.4% -13.7%
Owner occupied 96 68.6% 6.7%
Unoccupied housing units
30.7%
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.

Fairfield housing costs

Housing costs in Fairfield come to a median of $995 per month, while tenants specifically pay a median gross rent of $1,125.

Median housing costs per month
$995/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 Fairfield
$1,125/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 Fairfield

Fairfield education at a glance

About 19.4% of the population in Fairfield went to high school, while 14.7% pursued college studies. Another 10.6% earned an associate degree and 25.2% hold a bachelor’s. Meanwhile, 7.9% went even further, earning a master’s or doctorate.

Education level
Value Percent YoY change
No high school 76 22.3% 2.7%
High school diploma 66 19.4% -15.4%
College diploma 50 14.7% 51.5%
Associate degree 36 10.6% 12.5%
Bachelor's degree 86 25.2% -2.3%
Graduate degree 27 7.9% -18.2%
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 Fairfield

How much people earn in Fairfield

The average annual household income in Fairfield was $87,983 in 2024, the most recent annual data available, according to the U.S. Census Bureau. This marked a -2.9% change from the previous year. At the same time, the median income stood at $71,250, reflecting a -8.6% shift over the same period.

Average household income in Fairfield
$87,983/year
-2.9% year-over-year change
Median household income in Fairfield
$71,250/year
-8.6% year-over-year change

Fairfield income by age

In Fairfield, households led by residents aged 25 to 44 — usually in the early to mid stages of their careers — have a median income of $97,083. Those with someone between 45 and 64 in charge, often well established professionally, earn $83,750 overall. Overall, 97.8% of the locals in this community live above the poverty line.

Income breakdown by age
Value YoY change
25 - 44 $97,083 N/A
45 - 64 $83,750 4.0%
Over 65 $41,438 6.5%
Above poverty level
488
Below poverty level
11
Value Percent YoY
change
Above poverty level 488 97.8% -4.1%
Below poverty level 11 2.2% 10.0%

Employment in Fairfield

Workforce and job types in Fairfield

The job market in Fairfield is powered by 200 working residents, spread across a range of industries and roles. 66.5% of the working population are employed in professional or administrative positions, while 33.5% are in hands-on or service-based jobs. Also, 5.5% run their own businesses, 70% are employed by private companies, and 23% work in the public sector.

Workforce demographics

Working population
200
12.4% year-over-year change
White collar
133
Blue collar
67
Value Percent YoY change
White collar 133 66.5% 13.7%
Blue collar 67 33.5% 9.8%
Employer type
Self employees
5.5%
Private companies
70%
Governmental workers
23%
Not for profit companies
1.5%
Value Percent YoY change
Self employees 11 5.5% 83.3%
Private companies 140 70% 19.7%
Governmental workers 46 23% -11.5%
Not for profit companies 3 1.5% 0.0%

Transportation in Fairfield

How people get around in Fairfield

Commuting methods vary: 90.4% of residents travel by personal vehicle and 4.2% 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 150 90.4% 17.2%
Walk 7 4.2% 40.0%
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 Fairfield by zipcode?

Zipcode Population Number of households Median income Average income
83327 1,037 307 $66,250 $92,260

Explore more communities

FAQs about Fairfield demographics 

What is the total population of Fairfield?

Fairfield has a total population of 499 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 -3.9% compared to a year ago.

What is the gender ratio in Fairfield?

The gender ratio in Fairfield is as follows:
  • 39.5% males (197 residents)
  • 60.5% females (302 residents)

What is the median age in Fairfield?

The median age in Fairfield is 35.7.

What is the age distribution of the population in Fairfield?

The age distribution in Fairfield is as follows:
  • Under 15: 24.6% (123 residents)
  • Ages 15-24: 7% (35 residents)
  • Ages 25-44: 37.5% (187 residents)
  • Ages 45-64: 18.4% (92 residents)
  • Over 65: 12.4% (62 residents)

What is the racial and ethnic makeup of Fairfield?

The racial and ethnic makeup of Fairfield is as follows:
  • White: 68.7% (343 residents)
  • Black or African American: 0% (0 residents)
  • American Indian and Alaska Native: 4.2% (21 residents)
  • Asian: 0% (0 residents)
  • Native Hawaiian and Other Pacific Islander: 0% (0 residents)
  • Two or More Races: 16.8% (84 residents)
  • Other: 10.2% (51 residents)

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

U.S.-born citizens represent 98.2% of the population in Fairfield.

How many housing units are there in Fairfield?

There are 202 housing units in Fairfield, reflecting a -4.3% change compared to the previous year, according to the latest data from the U.S. Census Bureau.

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

Fairfield has a total of 140 households, with an average of 4 people in each.

What is the median household income in Fairfield?

Fairfield has a median household income of $71,250, representing a -8.6% shift from the previous year, according to the U.S. Census Bureau.

What is the job market overview for Fairfield?

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

Job types:
  • White-collar workers: 66.5% (133 residents)
  • Blue-collar workers: 33.5% (67 residents)

Places of employment:
  • Self-employed: 5.5% (11 residents)
  • Private companies: 70% (140 residents)
  • Governmental workers: 23% (46 residents)
  • Not-for-profit companies: 1.5% (3 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