83236 ZIP Code — Firth, ID

Bingham County, Idaho

ZIP code 83236 is located in Firth, Idaho, within Bingham County. It covers approximately 217.14 square miles and serves a population of 2,018 residents. This is a standard ZIP code in the Mountain (MT) timezone, served by area code 208.

About ZIP code 83236

The housing stock consists of predominantly single-family detached homes. Most homes were built in the pre-1940, giving the area an established character. Median home value is $260,700. Owner-occupancy is high at 82%, well above the national average.

Median household income is $64,013. The poverty rate of 3% is below the national average. 53% of households receive Social Security income, suggesting a notable retiree or disability population.

The dominant occupation class is management, business, and professional, with agriculture and mining as the leading industry. The average commute of 26 minutes is near the national average.

College attainment at 15% is below the national average, consistent with a trades and production-oriented local economy.

Overall, ZIP code 83236 reflects a community defined by a trades-oriented workforce, high homeownership, and a significant Social Security-dependent population.

2,018
population
217.14
sq mi land
Standard
ZIP type
Mountain (MT)
timezone
83236 ZIP code map
Cities in ZIP code 83236

Below are the cities the US Postal Service accepts for ZIP code 83236. Using any city not on this list may result in mail delivery delays.

City Status
Firth Acceptable
Firth Preferred
Nearby ZIP codes
83274 Shelley (12.7 mi) 83404 Idaho Falls (17.6 mi) 83415 Idaho Falls (19.3 mi) 83406 Idaho Falls (19.8 mi)
Demographics updated 06/2026
Population
Total population 2,018
Population density 9 / sq mi
State FIPS 16
County FIPS 011
Geography
Land area 217.14 sq mi
Water area 0.47 sq mi
Latitude 43.1936
Longitude -112.1108
Timezone Mountain (MT)
Area code 208
Total population by age
Gender
Race & ethnicity
Economics updated 06/2026
Household income
Income range This ZIP County avg State avg
Under $50k 46.9% 41.6% 41.8%
$50k – $100k 40.0% 35.0% 34.0%
$100k – $200k 13.0% 20.5% 19.5%
Over $200k 0.1% 2.9% 4.7%

Demographics & statistics

2,018
Population
9
People per sq mi
41.2
Median age
$64,013
Median household income
$29,535
Per capita income
$260,700
Median home value
$750
Median monthly rent
81.7%
Home ownership
2.7%
Poverty rate
0.0%
Unemployment
760
Housing units
14.7%
Bachelor's or higher

Age distribution

Male Female
75
Under 5
59
86
5–9
67
73
10–14
58
87
15–19
68
30
20–24
24
125
25–34
98
134
35–44
104
94
45–54
73
60
55–59
47
53
60–64
41
220
65–74
172
81
75–84
64
14
85+
11
← Male
Female →

Age summary

GroupCount%
Under 1854427.0%
18 and over1,47473.0%
65 and over56227.8%
Median age41.2 years

Race & ethnicity

White 83%
Hispanic or Latino 6.5%
Two or more races 5.6%
Other race 2.5%
Asian 1.3%
American Indian / Alaska Native 1%
Native Hawaiian / Pacific Islander 0.1%
GroupCount%
White1,79383%
Hispanic or Latino1416.5%
Two or more races1205.6%
Other race552.5%
Asian271.3%
American Indian / Alaska Native211%
Native Hawaiian / Pacific Islander20.1%

Household income

Income range This ZIP County avg State avg
Under $50k 46.9% 41.6% 41.8%
$50k – $100k 40.0% 35.0% 34.0%
$100k – $200k 13.0% 20.5% 19.5%
Over $200k 0.1% 2.9% 4.7%
Under $10k 2.3%
$10k–$15k 1.1%
$15k–$25k 4.2%
$25k–$35k 21.7%
$35k–$50k 12.6%
$50k–$75k 17.9%
$75k–$100k 18.3%
$100k–$150k 17.5%
$150k–$200k 4.2%
$200k+ 0.1%
Range% of households
Under $10k2.3%
$10k–$15k1.1%
$15k–$25k4.2%
$25k–$35k21.7%
$35k–$50k12.6%
$50k–$75k17.9%
$75k–$100k18.3%
$100k–$150k17.5%
$150k–$200k4.2%
$200k+0.1%
Median income$64,013

Housing

Home values

Under $50k 1.7%
$50k–$100k 7.4%
$100k–$150k 10.9%
$150k–$200k 8.0%
$200k–$300k 44.2%
$300k–$500k 19.7%
$500k–$1M 6.9%
$1M+ 1.1%

Housing overview

MetricValue
Median home value$260,700
Median rent / month$750
Owner occupied81.7%
Renter occupied18.3%
Vacant6.7%
Single-family detached83.0%
Large apartment buildings0.0%
Mobile homes11.5%
Median rooms5.8
Avg household size (owned)2.36

Year built

Era%
2020 or later1.5%
2010–201910.6%
2000–200914.0%
1990–199910.0%
1980–19893.7%
1970–197919.8%
1960–19697.5%
1950–19592.9%
1940–19494.1%
1939 or earlier25.7%

Bedrooms

Size% of units
No bedroom (studio)0.5%
1 bedroom1.9%
2 bedrooms34.0%
3 bedrooms22.6%
4 bedrooms28.1%
5+ bedrooms12.9%

Vehicles per household

Vehicles% of households
No vehicle0.6%
1 vehicle14.6%
2 vehicles38.3%
3 or more46.5%

Heating fuel

Fuel type%
Utility gas26.6%
Electricity39.1%
Propane / LP gas14.3%
Fuel oil4.6%
Wood14.3%

Households & families

Household typeCount%
Married-couple family49858.2%
Cohabiting couple182.1%
Male householder, no spouse25830.1%
Female householder, no spouse829.6%
Households with children under 1825329.6%
Households with seniors (65+)41448.4%
Average household size2.36

Marital status

StatusMaleFemale
Never married18.8%16.5%
Married57.1%73.3%
Separated0.0%0.0%
Widowed2.1%6.9%
Divorced22.0%3.2%

Education

Less than 9th grade 1.3%
Some HS, no diploma 5.9%
HS graduate 40.8%
Some college, no degree 21.2%
Associate's degree 16.2%
Bachelor's degree 10.2%
Graduate / professional 4.5%
Metric%
HS diploma or higher92.8%
Bachelor's or higher14.7%

School enrollment (ages 3–17)

TypeCount%
Nursery / preschool40.9%
Kindergarten143.0%
Elementary school25254.1%
High school14230.5%
College / grad school5411.6%

Employment

Industry of employment

Agriculture & mining 32.0%
Education & healthcare 16.7%
Professional & management 12.4%
Manufacturing 10.5%
Retail trade 6.6%
Construction 5.2%
Transportation & utilities 4.1%
Other services 4.0%
Public administration 3.7%
Finance & real estate 2.5%
Arts, food & hospitality 2.3%

Occupation

Category%
Management, business & arts49.0%
Service8.7%
Sales & office12.1%
Natural resources & construction21.8%
Production & transportation8.4%

Employment type

Type%
Private sector61.2%
Government14.9%
Self-employed23.9%
Unpaid family workers0.0%

Commute

Method%
Drive alone78.4%
Carpool10.7%
Public transit1.8%
Walk0.4%
Work from home4.6%
Other means4.1%
Avg commute (minutes)26.2

Poverty

All people 2.7%
Under 18 years 0.6%
18 and over 3.5%
Married-couple families 1.0%
Female-led households 42.9%

Income support

Source% of households
Social Security52.9%
Retirement income21.1%
Supplemental Security1.1%
Cash public assistance1.6%
Food stamps / SNAP3.6%

Health indicators

Condition%
Obesity37.4%
High blood pressure31.4%
High cholesterol31.7%
Diabetes9.9%
Heart disease6.3%
Stroke2.9%
Asthma9.2%
Arthritis23.3%
Kidney disease2.8%
Pulmonary disease6.1%
Cancer6.5%
Behavior / access%
Smoking16.2%
Binge drinking14.7%
No physical activity23.7%
Less than 7 hrs sleep31.2%
Depression19.4%
Fair or poor health13.2%
Poor mental health13.4%
Poor physical health10.5%
No health insurance15.6%
Visited doctor (checkup)67.2%
Visited dentist67.3%
Cholesterol screening86.7%
Teeth loss13.8%

Veterans & disability

VeteransCount%
Civilian veterans1278.8%
Disability%
Any disability13.9%
Under 1814.0%
18–64 years8.5%
65 and over22.2%

Health insurance coverage

Type%
Private insurance68.5%
Public insurance47.7%
No insurance4.6%
Uninsured under 193.7%

Language & origin

Language spoken at home (age 5+)

LanguageCount%
English only1,88493.4%
Spanish311.6%
Other Indo-European311.6%
Asian & Pacific Islander00.0%
Other languages00.0%

Place of birth & citizenship

OriginCount%
Native born (US)1,96397.3%
Born in same state1,94996.6%
Born in different state1,53175.9%
Foreign born140.7%
Naturalized citizen552.7%
Not a US citizen4174.5%

Ancestry

AncestryCount%
French38218.9%
Arab1939.6%
Italian864.3%
Polish562.8%
AncestryCount%
Dutch442.2%
English150.7%
German70.3%

Technology access

Metric% of households
Computer access42.4%
Internet access79.0%

Source: U.S. Census Bureau, American Community Survey 2025 estimates.

Frequently asked questions about ZIP code 83236

What city is ZIP code 83236 in?

ZIP code 83236 is primarily assigned to Firth, Idaho.

What county is ZIP code 83236 in?

ZIP code 83236 falls within Bingham County, Idaho.

Does ZIP code 83236 have an older population?

28% of residents in ZIP code 83236 are 65 or older, above the national average of ~17%.

Does ZIP code 83236 have a large retiree population?

53% of households in ZIP code 83236 receive Social Security income, suggesting a significant retiree or disability population.

How educated is the population of ZIP code 83236?

15% of residents hold a bachelor's degree or higher — below the national average of ~33%, consistent with a trades-oriented local economy.

Is ZIP code 83236 mostly owner-occupied?

82% of occupied units in ZIP code 83236 are owner-occupied, well above the national average.

What timezone is ZIP code 83236 in?

ZIP code 83236 observes the MST timezone.

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