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

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

Under 5

5–9

10–14

15–19

20–24

125

25–34

134

35–44

104

45–54

55–59

60–64

220

65–74

172

75–84

85+

← Male

Female →

Age summary

Group	Count	%
Under 18	544	27.0%
18 and over	1,474	73.0%
65 and over	562	27.8%
Median age	41.2 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%

Group	Count	%
White	1,793	83%
Hispanic or Latino	141	6.5%
Two or more races	120	5.6%
Other race	55	2.5%
Asian	27	1.3%
American Indian / Alaska Native	21	1%
Native Hawaiian / Pacific Islander	2	0.1%

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 $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%
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

Metric	Value
Median home value	$260,700
Median rent / month	$750
Owner occupied	81.7%
Renter occupied	18.3%
Vacant	6.7%
Single-family detached	83.0%
Large apartment buildings	0.0%
Mobile homes	11.5%
Median rooms	5.8
Avg household size (owned)	2.36

Year built

Era	%
2020 or later	1.5%
2010–2019	10.6%
2000–2009	14.0%
1990–1999	10.0%
1980–1989	3.7%
1970–1979	19.8%
1960–1969	7.5%
1950–1959	2.9%
1940–1949	4.1%
1939 or earlier	25.7%

Bedrooms

Size	% of units
No bedroom (studio)	0.5%
1 bedroom	1.9%
2 bedrooms	34.0%
3 bedrooms	22.6%
4 bedrooms	28.1%
5+ bedrooms	12.9%

Vehicles per household

Vehicles	% of households
No vehicle	0.6%
1 vehicle	14.6%
2 vehicles	38.3%
3 or more	46.5%

Heating fuel

Fuel type	%
Utility gas	26.6%
Electricity	39.1%
Propane / LP gas	14.3%
Fuel oil	4.6%
Wood	14.3%

Households & families

Household type	Count	%
Married-couple family	498	58.2%
Cohabiting couple	18	2.1%
Male householder, no spouse	258	30.1%
Female householder, no spouse	82	9.6%
Households with children under 18	253	29.6%
Households with seniors (65+)	414	48.4%
Average household size	2.36

Marital status

Status	Male	Female
Never married	18.8%	16.5%
Married	57.1%	73.3%
Separated	0.0%	0.0%
Widowed	2.1%	6.9%
Divorced	22.0%	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 higher	92.8%
Bachelor's or higher	14.7%

School enrollment (ages 3–17)

Type	Count	%
Nursery / preschool	4	0.9%
Kindergarten	14	3.0%
Elementary school	252	54.1%
High school	142	30.5%
College / grad school	54	11.6%

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 & arts	49.0%
Service	8.7%
Sales & office	12.1%
Natural resources & construction	21.8%
Production & transportation	8.4%

Employment type

Type	%
Private sector	61.2%
Government	14.9%
Self-employed	23.9%
Unpaid family workers	0.0%

Commute

Method	%
Drive alone	78.4%
Carpool	10.7%
Public transit	1.8%
Walk	0.4%
Work from home	4.6%
Other means	4.1%
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 Security	52.9%
Retirement income	21.1%
Supplemental Security	1.1%
Cash public assistance	1.6%
Food stamps / SNAP	3.6%

Health indicators

Condition	%
Obesity	37.4%
High blood pressure	31.4%
High cholesterol	31.7%
Diabetes	9.9%
Heart disease	6.3%
Stroke	2.9%
Asthma	9.2%
Arthritis	23.3%
Kidney disease	2.8%
Pulmonary disease	6.1%
Cancer	6.5%

Behavior / access	%
Smoking	16.2%
Binge drinking	14.7%
No physical activity	23.7%
Less than 7 hrs sleep	31.2%
Depression	19.4%
Fair or poor health	13.2%
Poor mental health	13.4%
Poor physical health	10.5%
No health insurance	15.6%
Visited doctor (checkup)	67.2%
Visited dentist	67.3%
Cholesterol screening	86.7%
Teeth loss	13.8%

Veterans & disability

Veterans	Count	%
Civilian veterans	127	8.8%

Disability	%
Any disability	13.9%
Under 18	14.0%
18–64 years	8.5%
65 and over	22.2%

Health insurance coverage

Type	%
Private insurance	68.5%
Public insurance	47.7%
No insurance	4.6%
Uninsured under 19	3.7%

Language & origin

Language spoken at home (age 5+)

Language	Count	%
English only	1,884	93.4%
Spanish	31	1.6%
Other Indo-European	31	1.6%
Asian & Pacific Islander	0	0.0%
Other languages	0	0.0%

Place of birth & citizenship

Origin	Count	%
Native born (US)	1,963	97.3%
Born in same state	1,949	96.6%
Born in different state	1,531	75.9%
Foreign born	14	0.7%
Naturalized citizen	55	2.7%
Not a US citizen	41	74.5%

Ancestry

Ancestry	Count	%
French	382	18.9%
Arab	193	9.6%
Italian	86	4.3%
Polish	56	2.8%

Ancestry	Count	%
Dutch	44	2.2%
English	15	0.7%
German	7	0.3%

Technology access

Metric	% of households
Computer access	42.4%
Internet access	79.0%

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.