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Idaho ZIP Codes
Gem County
Sweet, ID
83670
83670 ZIP Code — Sweet, ID
Gem County, Idaho
ZIP code 83670 is located in
Sweet ,
Idaho ,
within Gem County .
It covers approximately 67.56 square miles and serves a population of
717 residents.
This is a standard ZIP code in the Mountain (MT) timezone,
served by area code 208 .
About ZIP code 83670
The housing stock consists of predominantly single-family detached homes. Most homes were built in the 1990s, giving the area an established character. Owner-occupancy is high at 95%, well above the national average.
Median household income is $79,654. The poverty rate of 3% is below the national average. 33% of households receive Social Security income, suggesting a notable retiree or disability population.
The dominant occupation class is management, business, and professional, with manufacturing as the leading industry. An above-average commute of 38 minutes suggests many residents work outside the immediate area.
College attainment at 15% is below the national average, consistent with a trades and production-oriented local economy.
Notable community characteristics include a notable veteran presence at 16% of civilians, above the national average of 7%.
Overall, ZIP code 83670 reflects a community defined by a trades-oriented workforce, a strong veteran community, high homeownership, and a significant Social Security-dependent population.
83670 ZIP code map
View map of 83670
Cities in ZIP code 83670
Below are the cities the US Postal Service accepts for ZIP code 83670. Using any city not on this list may result in mail delivery delays.
City
Status
Sweet
Acceptable
Demographics
updated 05/2026
Population
Total population
717
Population density
11 / sq mi
State FIPS
16
County FIPS
045
Geography
Land area
67.56 sq mi
Water area
0.22 sq mi
Latitude
44.0313
Longitude
-116.3866
Timezone
Mountain (MT)
Area code
208
Economics
updated 05/2026
Household income
Income range
This ZIP
County avg
State avg
Under $50k
29.1%
47.4%
41.8%
$50k – $100k
66.4%
34.3%
34.0%
$100k – $200k
4.5%
14.4%
19.5%
Over $200k
0.0%
3.9%
4.7%
Demographics & statistics
$79,654
Median household income
14.5%
Bachelor's or higher
Age distribution
Age summary
Group Count %
Under 18 131 18.3%
18 and over 586 81.7%
65 and over 182 25.4%
Median age 60.7 years
Race & ethnicity
Group Count %
White 694 93.8%
Hispanic or Latino 23 3.1%
Two or more races 23 3.1%
Household income
Income range
This ZIP
County avg
State avg
Under $50k
29.1%
47.4%
41.8%
$50k – $100k
66.4%
34.3%
34.0%
$100k – $200k
4.5%
14.4%
19.5%
Over $200k
0.0%
3.9%
4.7%
Range % of households
$10k–$15k 3.6%
$15k–$25k 2.9%
$35k–$50k 9.7%
$50k–$75k 19.4%
$75k–$100k 33.0%
$100k–$150k 26.9%
$150k–$200k 4.7%
Median income $79,654
Housing
Housing overview
Metric Value
Median home value $0
Median rent / month $0
Owner occupied 95.3%
Renter occupied 4.7%
Vacant 2.8%
Single-family detached 83.3%
Large apartment buildings 0.0%
Mobile homes 13.9%
Median rooms 5.5
Avg household size (owned) 2.45
Year built
Era %
2020 or later 0.0%
2010–2019 17.4%
2000–2009 23.0%
1990–1999 31.7%
1980–1989 3.8%
1970–1979 7.0%
1960–1969 2.1%
1950–1959 0.0%
1940–1949 0.0%
1939 or earlier 15.0%
Bedrooms
Size % of units
No bedroom (studio) 0.0%
1 bedroom 5.9%
2 bedrooms 30.0%
3 bedrooms 53.3%
4 bedrooms 7.3%
5+ bedrooms 3.5%
Vehicles per household
Vehicles % of households
No vehicle 2.9%
1 vehicle 3.6%
2 vehicles 35.5%
3 or more 58.1%
Heating fuel
Fuel type %
Utility gas 2.9%
Electricity 50.5%
Fuel oil 7.5%
Wood 21.9%
Households & families
Household type Count %
Married-couple family 271 97.1%
Cohabiting couple 0 0.0%
Male householder, no spouse 0 0.0%
Female householder, no spouse 8 2.9%
Households with children under 18 56 20.1%
Households with seniors (65+) 92 33.0%
Average household size 2.57
Marital status
Status Male Female
Never married 9.7% 11.7%
Married 90.3% 85.9%
Separated 0.0% 0.0%
Widowed 0.0% 2.5%
Divorced 0.0% 0.0%
Education
Some college, no degree
33.7%
Graduate / professional
1.2%
Metric %
HS diploma or higher 98.9%
Bachelor's or higher 14.5%
School enrollment (ages 3–17)
Type Count %
Nursery / preschool 0 0.0%
Kindergarten 17 11.3%
Elementary school 32 21.2%
High school 81 53.6%
College / grad school 21 13.9%
Employment
Industry of employment
Education & healthcare
16.4%
Finance & real estate
10.5%
Professional & management
5.4%
Agriculture & mining
5.1%
Public administration
2.0%
Occupation
Category %
Management, business & arts 36.7%
Service 5.6%
Sales & office 29.9%
Natural resources & construction 22.0%
Production & transportation 5.6%
Employment type
Type %
Private sector 52.3%
Government 38.4%
Self-employed 9.3%
Unpaid family workers 0.0%
Commute
Method %
Drive alone 90.4%
Carpool 6.5%
Public transit 0.0%
Walk 3.1%
Work from home 0.0%
Other means 0.0%
Avg commute (minutes) 38.4
Poverty
Married-couple families
3.7%
Female-led households
0.0%
Income support
Source % of households
Social Security 32.6%
Retirement income 25.4%
Supplemental Security 4.3%
Cash public assistance 0.0%
Food stamps / SNAP 2.9%
Health indicators
Condition %
Obesity 32.0%
High blood pressure 35.2%
High cholesterol 34.4%
Diabetes 10.8%
Heart disease 7.5%
Stroke 3.3%
Asthma 9.3%
Arthritis 26.5%
Kidney disease 3.1%
Pulmonary disease 7.2%
Cancer 7.8%
Behavior / access %
Smoking 16.8%
Binge drinking 13.9%
No physical activity 21.7%
Less than 7 hrs sleep 28.8%
Depression 18.5%
Fair or poor health 13.5%
Poor mental health 12.6%
Poor physical health 11.1%
No health insurance 13.8%
Visited doctor (checkup) 71.2%
Visited dentist 65.0%
Cholesterol screening 89.5%
Teeth loss 13.3%
Veterans & disability
Veterans Count %
Civilian veterans 91 15.5%
Disability %
Any disability 22.0%
Under 18 0.0%
18–64 years 8.9%
65 and over 67.0%
Health insurance coverage
Type %
Private insurance 75.7%
Public insurance 38.2%
No insurance 3.3%
Uninsured under 19 0.0%
Language & origin
Language spoken at home (age 5+)
Language Count %
English only 701 97.8%
Spanish 0 0.0%
Other Indo-European 0 0.0%
Asian & Pacific Islander 0 0.0%
Other languages 0 0.0%
Place of birth & citizenship
Origin Count %
Native born (US) 717 100.0%
Born in same state 717 100.0%
Born in different state 243 33.9%
Foreign born 0 0.0%
Naturalized citizen 0 0.0%
Not a US citizen 0 0.0%
Ancestry
Ancestry Count %
French 143 19.9%
Italian 83 11.6%
Ancestry Count %
Arab 77 10.7%
Polish 30 4.2%
Technology access
Metric % of households
Computer access 38.9%
Internet access 96.4%
Source: U.S. Census Bureau, American Community Survey 2025 estimates.
Frequently asked questions about ZIP code 83670
What city is ZIP code 83670 in?
ZIP code 83670 is primarily assigned to Sweet, Idaho.
What county is ZIP code 83670 in?
ZIP code 83670 falls within Gem County, Idaho.
Is ZIP code 83670 mostly owner-occupied?
95% of occupied units in ZIP code 83670 are owner-occupied, well above the national average.
Does ZIP code 83670 have an older population?
25% of residents in ZIP code 83670 are 65 or older, above the national average of ~17%.
How educated is the population of ZIP code 83670?
15% of residents hold a bachelor's degree or higher — below the national average of ~33%, consistent with a trades-oriented local economy.
Does ZIP code 83670 have a large veteran population?
16% of civilians in ZIP code 83670 are veterans, above the national average of ~7%.
What timezone is ZIP code 83670 in?
ZIP code 83670 observes the MST timezone.
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