🇺🇸 United States ZIP Code

STANDARD

18951

Quakertown

ZIP Code 18951 is a standard zip code serving Quakertown, Quakertown, Pennsylvania (PA), in Bucks County, United States. It has an estimated population of 34,651 with a median household income of $66,162. The area falls within the America/New_York timezone.

Median Household Income vs. National Average

Location

Country: 🇺🇸 United States
State / Province: Pennsylvania (PA)
County: Bucks
City: Quakertown
Timezone: America/New_York

Coordinates

Latitude: 40.441100
Longitude: -75.350700

Geographic Details

Land Area: 66.62 mi²
Water Area: 1.04 mi²
Population Density: 520.0 people per mi² (70th percentile)
Bounding Box: 40.538407°N, 40.384650°S, -75.217449°E, -75.466713°W

With 34,651 residents spread across 66.62 square miles, this area has a population density of 520.0 people per square mile.

Demographics

34,651

Population

90th percentile

$66,162

Median Income

80th percentile

$246,500

Median Home Value

80th percentile

66.62 mi²

Land Area

The median household income in 18951 is $66,162, and the median home value is $246,500. This places the area in the top 25% nationally for household income.

Housing

13,675

Total Units

13,059

Occupied Units

95.5%

Occupancy Rate

Similar ZIP Codes in Pennsylvania

ZIP codes with similar median household income in Pennsylvania.

18464

Tafton

$59,000

17022

Elizabethtown

$58,074

17073

Newmanstown

$59,235

19468

Royersford

$71,923

19406

King Of Prussia

$74,104

17565

Pequea

$65,313

15146

Monroeville

$58,083

19056

Levittown

$69,314

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.