🇺🇸 United States ZIP Code

PO BOX

99124

Elmer City

ZIP Code 99124 is a po box zip code serving Elmer City, Elmer City, Washington (WA), in Okanogan County, United States. It has an estimated population of 240 with a median household income of $55,694. The area falls within the America/Los_Angeles timezone.

Median Household Income vs. National Average

Location

Country: 🇺🇸 United States
State / Province: Washington (WA)
County: Okanogan
City: Elmer City
Timezone: America/Los_Angeles

Coordinates

Latitude: 47.997900
Longitude: -118.954500

Geographic Details

Land Area: 0.22 mi²
Population Density: 1111.0 people per mi² (75th percentile)
Bounding Box: 48.005812°N, 47.995693°S, -118.947469°E, -118.959332°W

With 240 residents spread across 0.22 square miles, this area has a population density of 1111.0 people per square mile.

Demographics

240

Population

5th percentile

$55,694

Median Income

65th percentile

$120,400

Median Home Value

45th percentile

0.22 mi²

Land Area

The median household income in 99124 is $55,694, and the median home value is $120,400.

Housing

114

Total Units

100

Occupied Units

87.7%

Occupancy Rate

Similar ZIP Codes in Washington

ZIP codes with similar median household income in Washington.

98663

Vancouver

$49,358

98108

Seattle

$52,232

99116

Coulee Dam

$50,391

98625

Kalama

$59,654

98908

Yakima

$58,891

98294

Sultan

$60,707

98611

Castle Rock

$57,532

98087

Lynnwood

$63,639

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.