PlainZIP

Ashton, ID · standard

ZIP Code 83420

Fremont County, Idaho - Census ACS demographics, housing tenure, and business patterns, benchmarked against every US ZIP.

2,539
2/sq mi
$69,286
Median income
$337,700
Median home value
29.0%
Bachelor's or higher

The verdict

Ashton pairs a below-median household income with above-median home values, in a rural, homeowner-dominated area.

45th pct
household income, US ZIPs
Top 28%
home value, US ZIPs
2
people per sq mi
89%
owner-occupied homes

Source: U.S. Census Bureau ACS 5-Year Estimates (2019–2023). Percentiles rank ZIP 83420 against every reporting US ZIP.

ZIP code 83420 covers 1154.1 square miles in Ashton, Fremont County, Idaho (a standard USPS delivery area), with a modest 2,539 residents on file, a density of 2 people per square mile, in the Boise time zone.

ZIP 83420 reports a modest median household income of $69,286 (5% below the Idaho average), while per-capita income is $42,560. Local economic indicators show a 5.3% poverty rate alongside 3.0% unemployment. Median home value sits at $337,700 (11% below the state average), median rent at $1,025 a month, and owner-occupancy at 88.5%.

Educational attainment sits below the national norm: 29.0% of adults hold a bachelor's degree or higher, the median age is 49.4, and the average commute is 16 minutes. Compare these figures to the Idaho and national benchmarks above rather than reading 83420's numbers in isolation.

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 →

Top industries in ZIP 83420

Top 5 sectors by establishment count in Ashton, ID

Which industries have the most business establishments in ZIP 83420.

establishments

What this shows Establishment counts come from the Census ZIP Code Business Patterns program, which counts physical business locations rather than employees or revenue.

Source U.S. Census Bureau · ZIP Code Business Patterns (ZBP) As of 2023

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 83420, Ashton, 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

2,539

Population

1154.1

Area (sq mi)

2

People / sq mi

Boise

Time Zone

standard

ZIP Type

Neighborhood Scorecard
Get an A-F grade across income, safety, housing, rent, education, commute, and childcare for this ZIP code.
View Scorecard →

Who lives in ZIP 83420?

49.4

Median Age

54.5%

Male

45.5%

Female

8.4%

Foreign-Born

White 88.1%
African American 0.4%
Asian 0.0%
American Indian or Alaska Native 0.2%
Native Hawaiian or Pacific Islander 0.0%
Two or More Ethnicities 7.7%
Hispanic or Latino 9.9%

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?

$69,286

Median Household Income

-5% vs state

$42,560

Per Capita Income

5.3%

Poverty Rate

3.0%

Unemployment Rate

16.1 min

Mean Commute Time

How ZIP 83420 ranks nationally

Ashton, ID household income vs. every US ZIP code

Median household income, the full national distribution, with this ZIP marked

$69,286 45th percentile higher than 45% of 30,318 US ZIPs

$0–$20,000: 118 US ZIPs (0%). Below this entry. $20,000–$40,000: 1,573 US ZIPs (5%). Below this entry. $40,000–$60,000: 7,092 US ZIPs (23%). Below this entry. $60,000–$80,000: 9,980 US ZIPs (33%). This entry sits in this band. $80,000–$100,000: 5,778 US ZIPs (19%). Above this entry. $100,000–$120,000: 2,855 US ZIPs (9%). Above this entry. $120,000–$140,000: 1,362 US ZIPs (4%). Above this entry. $140,000–$160,000: 686 US ZIPs (2%). Above this entry. $160,000–$180,000: 364 US ZIPs (1%). Above this entry. $180,000–$200,000: 186 US ZIPs (1%). Above this entry. $200,000–$220,000: 324 US ZIPs (1%). Above this entry. This ZIP $0 $200K+ every reporting US ZIP, bucketed by value

Each bar is a $20K-wide band; taller bars hold more US ZIPs. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.

Source U.S. Census Bureau, ACS 5-Year Estimates · 2019–2023

Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)

What is the education profile here?

High School Graduate or Higher 53.4%
Bachelor's Degree or Higher 29.0%

Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)

What does housing look like?

1,326

Total Housing Units

990

Occupied Units

336

Vacant Units

2.57

Avg Household Size

Occupancy Type

Owner 88.5%
Renter 11.5%

$337,700

Median Home Value

-11% vs state

$1,025

Median Rent

1977

Median Year Built

Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)

How have home values changed over time?

FHFA House Price Index, annual appreciation data based on repeat sales and appraisals

-4.5%

YoY Change (2024)

331

HPI Index (2000 = 100)

+231%

Total Change Since 2000

Home values in ZIP 83420 have decreased 4.5% over the past year (2024). Since 2000, this ZIP has seen +231% cumulative appreciation.

Year Annual Change HPI Index
2020 +11.8% 210
2021 +9.8% 230
2022 +38.1% 318
2023 +9.0% 347
2024 -4.5% 331

Source: Federal Housing Finance Agency (FHFA) House Price Index, All-Transactions, Five-Digit ZIP Codes (Developmental Index). Index base = 100 in year 2000. Data through 2024. ZIP codes with few transactions may show missing values.

What businesses operate in this ZIP?

Census Bureau data shows 89 business establishments in ZIP 83420, employing approximately 482 people with a combined annual payroll of $22,082,000.

89

Businesses

482

Employees

$22.1M

Annual Payroll

11

Industry Sectors

Industry Establishments % of Total
Construction 25 28.1%
Retail trade 14 15.7%
Accommodation and food services 13 14.6%
Health care and social assistance 6 6.7%
Transportation and warehousing 5 5.6%
Other services (except public administration) 5 5.6%
Professional, scientific, and technical services 4 4.5%
Utilities 3 3.4%
Wholesale trade 3 3.4%
Real estate and rental and leasing 3 3.4%
Administrative and support and waste management and remediation services 3 3.4%

Source: U.S. Census Bureau, ZIP Code Business Patterns (ZBP), 2023. Employment figures may include noise for disclosure avoidance.

More ZIP Codes in Fremont County

83445 standard
Saint Anthony, ID
Pop: 7,406
83429 standard
Island Park, ID
Pop: 1,048
83451 standard
Teton, ID
Pop: 791
83436 standard
Newdale, ID
Pop: 491
83421 standard
Chester, ID
Pop: 319
83433 standard
Macks Inn, ID
Pop: 44

Related Areas

Fremont County Ashton, ID Idaho

Frequently Asked Questions

What county is ZIP code 83420 in? ▼
ZIP code 83420 (Ashton) is located in Fremont County, Idaho. Fremont County contains multiple ZIP codes, see the full list at /counties/fremont-id.
What is the population of ZIP code 83420? ▼
ZIP code 83420 in Ashton, ID has a population of 2,539 according to the Census Bureau ACS 2023 estimates.
What is the median household income in ZIP 83420? ▼
The median household income in ZIP 83420 is $69,286, which is 9% below the national average of $76,288.
What is the average home value in ZIP 83420? ▼
The median home value in ZIP 83420 is $337,700, which is 21% above the national average of $278,155.
What is the demographic makeup of ZIP 83420? ▼
The largest racial group in ZIP 83420 is White at 88.1%. Hispanic or Latino residents make up 9.9% of the population.
How many businesses are in ZIP code 83420? ▼
ZIP code 83420 has 89 business establishments employing approximately 482 people, according to Census Bureau ZIP Code Business Patterns (ZBP) 2023 data.
What are the main industries in ZIP code 83420? ▼
The top industries by establishment count in ZIP 83420 are: Construction (25), Retail trade (14), Accommodation and food services (13). There are 11 industry sectors represented in total.
How have home values changed in ZIP code 83420? ▼
According to the FHFA House Price Index, home values in ZIP 83420 decreased by 4.5% in 2024. Since 2000, home values in this ZIP have appreciated by approximately 231%. This is a developmental index based on repeat sales and appraisal data from Fannie Mae and Freddie Mac.
What is the education level in ZIP code 83420? ▼
In ZIP code 83420, 53.4% of residents aged 25+ have a high school diploma or higher, and 29.0% hold a bachelor's degree or higher. These figures come from the Census Bureau ACS 5-Year Estimates (2023).
What is the average commute time in ZIP 83420? ▼
The mean commute time for workers in ZIP code 83420 is 16.1 minutes according to Census ACS data. The national average is roughly 26 minutes, so commuters here spend less time traveling to work than typical.
What percentage of residents own vs. rent in ZIP 83420? ▼
In ZIP code 83420, approximately 88.5% of occupied housing units are owner-occupied and 11.5% are renter-occupied, based on Census ACS 2023 data.
What is the poverty rate in ZIP code 83420? ▼
The poverty rate in ZIP code 83420 is 5.3% according to Census Bureau ACS 2023 estimates. This measures the percentage of the population living below the federal poverty threshold.

Read our methodology to see how this data is sourced, computed, and verified.