🇺🇸 United States ZIP Code

STANDARD

83420

Ashton

ZIP Code 83420 is a standard zip code serving Ashton, Ashton, Idaho (ID), in Fremont County, United States. It has an estimated population of 2,539 with a median household income of $44,569. The area falls within the America/Boise timezone.

Median Household Income vs. National Average

Location

Country: 🇺🇸 United States
State / Province: Idaho (ID)
County: Fremont
City: Ashton
Timezone: America/Boise

Coordinates

Latitude: 44.015300
Longitude: -111.425300

Geographic Details

Land Area: 454.58 mi²
Water Area: 4.34 mi²
Population Density: 6.0 people per mi² (5th percentile)
Bounding Box: 44.289152°N, 43.901889°S, -111.047044°E, -111.653137°W

With 2,539 residents spread across 454.58 square miles, this area has a population density of 6.0 people per square mile.

Demographics

2,539

Population

45th percentile

$44,569

Median Income

40th percentile

$148,600

Median Home Value

55th percentile

454.58 mi²

Land Area

The median household income in 83420 is $44,569, and the median home value is $148,600.

Housing

1,221

Total Units

902

Occupied Units

73.9%

Occupancy Rate

Similar ZIP Codes in Idaho

ZIP codes with similar median household income in Idaho.

83537

Kendrick

$48,917

83858

Rathdrum

$50,332

83626

Greenleaf

$41,875

83647

Mountain Home

$44,940

83328

Filer

$42,098

83836

Hope

$47,895

83338

Jerome

$40,131

83624

Grand View

$39,583

Frequently Asked Questions

What information is available for each ZIP code?

Each ZIP code page shows city, state, county, geographic coordinates, timezone, population, median household income, median home value, housing units, land area, population density, commute time, educational attainment, area codes, and ZIP code type (Standard, PO Box, or Unique).

What are the different types of ZIP codes?

There are three types of ZIP codes: Standard (residential and commercial delivery areas), PO Box (assigned to post office box sections), and Unique (assigned to a single high-volume address like a government agency or large company). Standard ZIP codes are the most common.

How often is ZIP code data updated?

ZIP code assignments are updated quarterly by the USPS. Demographic data comes from the US Census Bureau's American Community Survey (ACS), which releases new 5-year estimates annually. ZipFYI updates its data to reflect the latest available information.

What is population density and why does it matter?

Population density measures the number of people per square mile in a ZIP code area. It helps identify urban vs. rural areas, affects real estate values, impacts service availability, and is used in market analysis. Dense urban ZIP codes may have 50,000+ people per square mile.

How are ZIP code boundaries determined?

ZIP code boundaries are determined by the USPS based on mail delivery routes, not political or geographic boundaries. They follow carrier routes and may cross city, county, or even state lines. Boundaries can change when the USPS reorganizes delivery operations.

What does median household income tell me about a ZIP code?

Median household income is the middle value when all household incomes in a ZIP code are sorted. Half of households earn more and half earn less. It is a better indicator of typical earnings than average income, which can be skewed by very high or very low outliers.