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Data updated 2026-10-07

ZIP Code 83420 · Ashton, ID

Fremont County · pop 2,580 · ACS 2020–2024

The median household income in ZIP Code 83420 (Ashton, ID) is $69,286, higher than 39% of the other ZIP Codes in Idaho.

Its FHFA home price index changed +62.2% over the five years to 2025.

01 — Where it stands

$69,286
Median household income
± $9,836 MOE
$337,700
Median home value
± $36,107 MOE
$1,025
Median gross rent
5.3%
Poverty rate
Percentiles for ZIP Code 83420 within Fremont County, Idaho and the U.S.
MeasureValueCounty percentileState percentileU.S. percentile
Median household income$69,286 ± $9,836— (fewer than 5 ZIP Codes)39th percentile (159 ZIP Codes compared)42nd percentile (22,922 ZIP Codes compared)
Per capita income$42,560— (fewer than 5 ZIP Codes)81st percentile (159 ZIP Codes compared)64th percentile (22,922 ZIP Codes compared)
Poverty rate5.3%— (fewer than 5 ZIP Codes)9th percentile (159 ZIP Codes compared)15th percentile (22,922 ZIP Codes compared)
Adults with a bachelor’s degree or higher29.0%— (fewer than 5 ZIP Codes)67th percentile (159 ZIP Codes compared)58th percentile (22,922 ZIP Codes compared)
Owner-occupied homes88.5%— (fewer than 5 ZIP Codes)87th percentile (159 ZIP Codes compared)86th percentile (22,922 ZIP Codes compared)
Housing vacancy rate25.3%— (fewer than 5 ZIP Codes)85th percentile (159 ZIP Codes compared)89th percentile (22,922 ZIP Codes compared)
Median home value$337,700 ± $36,107— (fewer than 5 ZIP Codes)43rd percentile (158 ZIP Codes compared)67th percentile (22,833 ZIP Codes compared)
Median gross rent$1,025— (fewer than 5 ZIP Codes)55th percentile (159 ZIP Codes compared)46th percentile (22,865 ZIP Codes compared)
Income inequality (Gini index)0.469— (fewer than 5 ZIP Codes)82nd percentile (159 ZIP Codes compared)76th percentile (22,922 ZIP Codes compared)
Average adjusted gross income per return$71,048— (fewer than 5 ZIP Codes)54th percentile (156 ZIP Codes compared)52nd percentile (22,230 ZIP Codes compared)
Returns with AGI of $200,000 or more4.9%— (fewer than 5 ZIP Codes)65th percentile (156 ZIP Codes compared)59th percentile (22,230 ZIP Codes compared)
Home price index, 5-year change+62.2%— (fewer than 5 ZIP Codes)47th percentile (146 ZIP Codes compared)75th percentile (18,843 ZIP Codes compared)
Business establishments per 1,000 residents34.5— (fewer than 5 ZIP Codes)81st percentile (159 ZIP Codes compared)86th percentile (22,700 ZIP Codes compared)
Average annual pay per employee$45,813— (fewer than 5 ZIP Codes)48th percentile (159 ZIP Codes compared)41st percentile (22,551 ZIP Codes compared)

— = fewer than 5 ZIP Codes in the group.

Percentile groups: Fremont County · Idaho · U.S. Hover a percentile for the number of ZIP Codes compared. MOE = 90% margin of error.

02 — Home prices

+3.0%
1-year change
2024–2025
+62.2%
5-year change
2020–2025
+147.6%
10-year change
2015–2025

Home price index — ZIP Code 83420

Home price index, ZIP Code 83420, 2000–2025Line chart of the annual home price index: 100.0 in 2000 and 345.3 in 2025. Every value is listed in the data table below the chart.0100200300400200020052010201520202025345.3

FHFA ZIP Code index (2000 = 100) — annual, developmental, not seasonally adjusted.

Data table
Home price index by year, ZIP Code 83420
YearIndexAnnual change
2000100.0+13.5%
200194.9−5.1%
200298.2+3.5%
200397.2−1.1%
2004105.9+9.0%
2005113.9+7.5%
2006126.1+10.7%
2007144.6+14.6%
2008159.1+10.0%
2009133.7−16.0%
2010120.7−9.8%
2011127.9+6.0%
2012118.9−7.0%
2013127.3+7.0%
2014119.7−6.0%
2015139.4+16.5%
2016143.6+3.0%
2017147.3+2.6%
2018174.4+18.4%
2019188.9+8.3%
2020212.9+12.7%
2021232.6+9.2%
2022320.4+37.8%
2023363.7+13.5%
2024335.2−7.8%
2025345.3+3.0%

03 — Nearby ZIP Codes

ZIP Code 83420 and nearby ZIP Codes
ZIPPlaceDistanceMedian household incomeMedian home valuePoverty rate5-yr HPI change
83420Ashton, IDthis ZIP Code$69,286$337,7005.3%+62.2%
83421Chester, ID11.8 mi$73,888$282,4000.0%+68.8%
83424Felt, ID12.6 mi$150,714$803,6000.0%—
83436Newdale, ID14.8 mi$80,000$337,1005.5%+63.5%
83452Tetonia, ID20.0 mi$72,083$565,80014.8%—
83451Teton, ID20.3 mi$67,946$259,30016.5%+64.5%
83445Saint Anthony, ID20.9 mi$68,012$283,80012.8%+72.3%

Up to six nearest ZIP Code Tabulation Areas within 30 miles, by straight-line distance between Census center points (2024 Gazetteer).

04 — Business mix

89
Establishments
482
Employees
$22.1M
Annual payroll
$45,813
Average pay per employee
Establishments by sector, ZIP Code 83420
SectorEstablishmentsShare of ZIPU.S. shareRelative concentration
Construction2528.1%9.6%2.9×
Retail trade1415.7%12.4%1.3×
Accommodation & food services1314.6%9.3%1.6×
Health care & social assistance66.7%11.9%0.6×
Transportation & warehousing55.6%3.3%1.7×
Other services55.6%9.5%0.6×
Professional, scientific & technical services44.5%11.7%0.4×
Utilities33.4%0.1%26.9×
Wholesale trade33.4%4.4%0.8×
Real estate & rental33.4%5.5%0.6×
All other sectors33.4%5.3%0.6×

Counts are establishments (business locations), not jobs. Relative concentration = the sector’s share of establishments here divided by its share in the U.S. (1.0× = the same share). Average pay is shown only where at least 20 employees are reported. ZIP Code Business Patterns 2023.

05 — About this data

How percentiles are calculated

Percentiles compare this ZIP Code with other ZIP Codes in the same county, the same state and the whole country. Only ZIP Codes with their own American Community Survey estimate, a population of at least 1,000 and a published median household income are compared, and only those with a value for the measure. A percentile of 64th means the value is higher than 64% of the other ZIP Codes in that group (0 is the lowest value, 100 the highest); it describes the size of a number, not a judgment about the area. County and state percentiles are left blank when the group has fewer than 5 ZIP Codes. The number of ZIP Codes compared is shown with each percentile.

Census figures are published for ZIP Code Tabulation Areas, which approximate USPS ZIP Code delivery areas; values shown as — are not published or are suppressed by the source.

Use of this page

Area statistics only. These figures describe a ZIP Code area — not any person or household — and do not rate the area or the people who live there. CoverFi is not a consumer reporting agency; do not use this page to make decisions about credit, insurance, employment or housing.

Sources

  1. U.S. Census Bureau, American Community Survey 2020–2024 5-year estimates, ZIP Code Tabulation Areas. Estimates are survey-based and have margins of error.
  2. U.S. Census Bureau, ZIP Code Business Patterns 2023 (establishment counts by NAICS sector; employment and payroll totals).
  3. Federal Housing Finance Agency, House Price Index for five-digit ZIP Codes, census tracts and counties — annual, developmental, not seasonally adjusted.
  4. IRS Statistics of Income, Individual Income Tax ZIP Code Data, tax year 2022.
  5. U.S. Census Bureau, 2024 Gazetteer Files (ZCTA locations, used for nearby ZIP Codes).
  6. HUD USPS ZIP Code Crosswalk Files (ZIP-to-tract and ZIP-to-county assignment).

This product uses Census Bureau data but is not endorsed or certified by the Census Bureau. This product uses the HUD User Data API but is not endorsed or certified by HUD User. ZIP Code Tabulation Areas are Census approximations of USPS ZIP Code delivery areas and may not match them exactly. ZIP Code is a trademark of the United States Postal Service.