Chester, ID · standard
ZIP Code 83421
Fremont County, Idaho - Census ACS demographics, housing tenure, and business patterns, benchmarked against every US ZIP.
- 319
- 9/sq mi
- $282,400
- Median home value
- 7.6%
- Bachelor's or higher
The verdict
Chester pairs above-median home values, in a rural, homeowner-dominated area.
- Top 36%
- home value, US ZIPs
- 9
- people per sq mi
- 100%
- owner-occupied homes
Source: U.S. Census Bureau ACS 5-Year Estimates (2019–2023). Percentiles rank ZIP 83421 against every reporting US ZIP.
ZIP code 83421 is a sparsely populated ZIP (a standard USPS delivery area) in Chester, Fremont County, Idaho, home to just 319 residents across 37.1 square miles, a density of 9 people per square mile, in the Boise time zone.
Median household income is not on file for ZIP 83421, but per-capita income is $125,365. Local economic indicators show a 0.0% poverty rate alongside 0.0% unemployment. On housing, the median home value is $282,400 (25% below the state average) with median rent at - per month, and 100.0% of occupied units are owner-occupied.
Formal educational attainment runs low here: just 7.6% of adults hold a bachelor's degree or higher, the median age is 62.4, and the average commute is -. We also surface 2 nearby ZIP codes within roughly 10 miles and 6 additional ZIPs sharing Fremont County, so you can benchmark 83421 against its immediate geography rather than a national average alone.
Every figure on this page is sourced from the U.S. Census Bureau American Community Survey 5-Year Estimates (including median rent) and the FHFA House Price Index, no estimates, no proprietary scoring. Verify with Census →
Source: U.S. Census Bureau, American Community Survey 5-Year Estimates + ZIP Code Business Patterns + FHFA HPI ACS demographics and median rent, ZBP business establishments, FHFA HPI for ZIP 83421, Chester, ID · 2023 Census ACS 5-Year Estimates use a rolling 60-month sample for stable small-geography estimates; ZBP updated annually; FHFA HPI updated quarterly/annually.
Quick Facts
319
Population
37.1
Area (sq mi)
9
People / sq mi
Boise
Time Zone
standard
ZIP Type
Who lives in ZIP 83421?
62.4
Median Age
60.0%
Male
40.0%
Female
0.0%
Foreign-Born
Hispanic or Latino is an ethnicity category from the Census Bureau and may overlap with other categories above.
Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)
How much do residents earn?
$125,365
Per Capita Income
0.0%
Poverty Rate
0.0%
Unemployment Rate
Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)
What is the education profile here?
Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)
What does housing look like?
148
Total Housing Units
115
Occupied Units
33
Vacant Units
1.91
Avg Household Size
Occupancy Type
$282,400
Median Home Value
-25% vs state
1979
Median Year Built
Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)
What businesses operate in this ZIP?
Census Bureau data shows 6 business establishments in ZIP 83421, employing approximately 19 people with a combined annual payroll of $837,000.
6
Businesses
19
Employees
$837K
Annual Payroll
1
Industry Sectors
| Industry | Establishments | % of Total |
|---|---|---|
| Construction | 3 | 50.0% |
Source: U.S. Census Bureau, ZIP Code Business Patterns (ZBP), 2023. Employment figures may include noise for disclosure avoidance.
Nearby ZIP Codes
Want a side-by-side? Compare 83421 vs 83436 →
ZIP 83421 vs its nearest neighbors, by population
Resident population of this ZIP and the closest reporting ZIP codes within ~10 miles.
- 83451
Teton (83451)
791 residents
- 83436
Newdale (83436)
491 residents
- 83421
Chester (83421)
319 residents
What this shows Among its immediate neighbors, ZIP 83421 ranks #3 by population - useful context the national average alone can't give.
More ZIP Codes in Fremont County
Related Areas
Frequently Asked Questions
What county is ZIP code 83421 in? ▼
What is the population of ZIP code 83421? ▼
What is the average home value in ZIP 83421? ▼
What is the demographic makeup of ZIP 83421? ▼
How many businesses are in ZIP code 83421? ▼
What is the education level in ZIP code 83421? ▼
Read our methodology to see how this data is sourced, computed, and verified.