18951 ZIP Code — Quakertown, PA

Bucks County, Pennsylvania

ZIP code 18951 is located in Quakertown, Pennsylvania, within Bucks County. It covers approximately 71.69 square miles and serves a population of 37,140 residents. This is a standard ZIP code in the Eastern (ET) timezone, served by area code 215/267/445.

About ZIP code 18951

The housing stock consists of a mix of housing types. Most homes were built in the 2000s, giving the area an established character. Median home value is $325,900. Owner-occupancy is high at 81%, well above the national average.

Median household income is $92,648. The poverty rate of 6% is below the national average. 35% of households receive Social Security income, suggesting a notable retiree or disability population.

The dominant occupation class is management, business, and professional, with education and healthcare as the leading industry. The average commute of 28 minutes is near the national average.

Educational attainment is near the national average, with 33% of residents holding a bachelor's degree or higher.

Overall, ZIP code 18951 reflects a community defined by high homeownership and a significant Social Security-dependent population.

37,140

population

71.69

sq mi land

Standard

ZIP type

Eastern (ET)

timezone

18951 ZIP code map

Cities in ZIP code 18951

Below are the cities the US Postal Service accepts for ZIP code 18951. Using any city not on this list may result in mail delivery delays.

City	Status
Quakertown	Preferred

Nearby ZIP codes

18955 Richlandtown (2.2 mi) 18036 Coopersburg (4.1 mi) 18944 Perkasie (6.5 mi) 18960 Sellersville (6.9 mi) 18034 Center Valley (7.1 mi) 18930 Kintnersville (7.6 mi) 18942 Ottsville (8.6 mi) 18917 Dublin (8.6 mi) 18077 Riegelsville (8.7 mi) 18015 Bethlehem (9 mi) 18055 Hellertown (9.2 mi) 18969 Telford (9.6 mi)

Demographics updated 05/2026

Population
Total population	37,140
Population density	518 / sq mi
State FIPS	42
County FIPS	017

Geography
Land area	71.69 sq mi
Water area	1.54 sq mi
Latitude	40.4589
Longitude	-75.3237
Timezone	Eastern (ET)
Area code	215/267/445

Total population by age

Gender

Race & ethnicity

Economics updated 05/2026

Household income

Income range	This ZIP	County avg	State avg
Under $50k	30.1%	25.3%	39.8%
$50k – $100k	30.4%	28.0%	30.8%
$100k – $200k	31.5%	31.3%	22.4%
Over $200k	8.0%	15.4%	7.1%

Demographics & statistics

37,140

Population

518

People per sq mi

44.0

Median age

$92,648

Median household income

$44,535

Per capita income

$325,900

Median home value

$1,304

Median monthly rent

81.0%

Home ownership

6.3%

Poverty rate

5.9%

Unemployment

12,240

Housing units

33.3%

Bachelor's or higher

Age distribution

Male Female

922

Under 5

940

1,087

5–9

1,109

1,171

10–14

1,194

1,285

15–19

1,309

937

20–24

956

1,772

25–34

1,806

2,244

35–44

2,288

2,856

45–54

2,911

1,386

55–59

1,412

1,289

60–64

1,313

2,101

65–74

2,142

973

75–84

992

369

85+

376

← Male

Female →

Age summary

Group	Count	%
Under 18	8,278	22.3%
18 and over	28,862	77.7%
65 and over	6,953	18.7%
Median age	44.0 years

Race & ethnicity

White 83.9%

Two or more races 6%

Hispanic or Latino 4.6%

Black or African American 2.2%

Asian 2.2%

Other race 1%

Group	Count	%
White	32,656	83.9%
Two or more races	2,349	6%
Hispanic or Latino	1,774	4.6%
Black or African American	867	2.2%
Asian	862	2.2%
Other race	406	1%

Household income

Income range	This ZIP	County avg	State avg
Under $50k	30.1%	25.3%	39.8%
$50k – $100k	30.4%	28.0%	30.8%
$100k – $200k	31.5%	31.3%	22.4%
Over $200k	8.0%	15.4%	7.1%

Under $10k 1.9%

$10k–$15k 2.0%

$15k–$25k 6.3%

$25k–$35k 5.3%

$35k–$50k 9.6%

$50k–$75k 18.3%

$75k–$100k 9.7%

$100k–$150k 21.6%

$150k–$200k 13.3%

$200k+ 12.0%

Range	% of households
Under $10k	1.9%
$10k–$15k	2.0%
$15k–$25k	6.3%
$25k–$35k	5.3%
$35k–$50k	9.6%
$50k–$75k	18.3%
$75k–$100k	9.7%
$100k–$150k	21.6%
$150k–$200k	13.3%
$200k+	12.0%
Median income	$92,648

Housing

Home values

Under $50k 5.0%

$50k–$100k 1.8%

$100k–$150k 0.9%

$150k–$200k 8.7%

$200k–$300k 28.7%

$300k–$500k 39.4%

$500k–$1M 14.1%

$1M+ 1.4%

Housing overview

Metric	Value
Median home value	$325,900
Median rent / month	$1,304
Owner occupied	81.0%
Renter occupied	19.0%
Vacant	4.1%
Single-family detached	59.0%
Large apartment buildings	2.5%
Mobile homes	6.8%
Median rooms	6.6
Avg household size (owned)	2.60

Year built

Era	%
2020 or later	0.8%
2010–2019	5.5%
2000–2009	17.4%
1990–1999	17.0%
1980–1989	11.0%
1970–1979	14.8%
1960–1969	7.5%
1950–1959	7.1%
1940–1949	3.2%
1939 or earlier	15.6%

Bedrooms

Size	% of units
No bedroom (studio)	0.9%
1 bedroom	5.1%
2 bedrooms	19.2%
3 bedrooms	45.9%
4 bedrooms	25.9%
5+ bedrooms	3.0%

Vehicles per household

Vehicles	% of households
No vehicle	4.5%
1 vehicle	31.9%
2 vehicles	36.6%
3 or more	27.0%

Heating fuel

Fuel type	%
Utility gas	24.2%
Electricity	38.3%
Propane / LP gas	10.0%
Fuel oil	22.0%
Wood	3.8%
Solar	0.2%
No fuel used	0.6%

Households & families

Household type	Count	%
Married-couple family	7,542	52.5%
Cohabiting couple	1,171	8.2%
Male householder, no spouse	2,132	14.9%
Female householder, no spouse	3,509	24.4%
Households with children under 18	4,489	31.3%
Households with seniors (65+)	4,800	33.4%
Average household size	2.55

Marital status

Status	Male	Female
Never married	33.3%	28.4%
Married	54.0%	48.9%
Separated	1.0%	1.9%
Widowed	2.3%	10.3%
Divorced	9.4%	10.5%

Education

Less than 9th grade 1.8%

Some HS, no diploma 5.2%

HS graduate 35.7%

Some college, no degree 15.3%

Associate's degree 8.7%

Bachelor's degree 19.3%

Graduate / professional 14.0%

Metric	%
HS diploma or higher	93.0%
Bachelor's or higher	33.3%

School enrollment (ages 3–17)

Type	Count	%
Nursery / preschool	461	5.6%
Kindergarten	427	5.2%
Elementary school	3,640	44.4%
High school	2,279	27.8%
College / grad school	1,400	17.1%

Employment

Industry of employment

Education & healthcare 20.1%

Manufacturing 15.4%

Professional & management 11.6%

Retail trade 11.3%

Construction 9.0%

Arts, food & hospitality 7.9%

Other services 6.9%

Transportation & utilities 4.9%

Finance & real estate 4.3%

Wholesale trade 2.9%

Public administration 2.8%

Agriculture & mining 1.6%

Information 1.3%

Occupation

Category	%
Management, business & arts	38.5%
Service	12.9%
Sales & office	19.4%
Natural resources & construction	11.1%
Production & transportation	18.1%

Employment type

Type	%
Private sector	86.6%
Government	7.8%
Self-employed	5.4%
Unpaid family workers	0.1%

Commute

Method	%
Drive alone	80.7%
Carpool	4.0%
Public transit	0.5%
Walk	2.4%
Work from home	10.8%
Other means	1.6%
Avg commute (minutes)	28.4

Poverty

All people 6.3%

Under 18 years 7.4%

18 and over 5.9%

Married-couple families 0.8%

Female-led households 17.7%

Income support

Source	% of households
Social Security	35.2%
Retirement income	24.9%
Supplemental Security	2.2%
Cash public assistance	2.1%
Food stamps / SNAP	7.8%

Health indicators

Condition	%
Obesity	27.1%
High blood pressure	30.9%
High cholesterol	32.1%
Diabetes	8.6%
Heart disease	5.9%
Stroke	2.6%
Asthma	9.6%
Arthritis	26.4%
Kidney disease	2.5%
Pulmonary disease	6.4%
Cancer	6.7%

Behavior / access	%
Smoking	18.1%
Binge drinking	19.2%
No physical activity	21.8%
Less than 7 hrs sleep	35.7%
Depression	21.4%
Fair or poor health	12.1%
Poor mental health	15.2%
Poor physical health	9.5%
No health insurance	10.2%
Visited doctor (checkup)	76.3%
Visited dentist	69.7%
Cholesterol screening	89.8%
Teeth loss	12.5%

Veterans & disability

Veterans	Count	%
Civilian veterans	2,176	7.6%

Disability	%
Any disability	10.4%
Under 18	3.2%
18–64 years	8.2%
65 and over	26.5%

Health insurance coverage

Type	%
Private insurance	75.1%
Public insurance	32.6%
No insurance	5.8%
Uninsured under 19	2.0%

Language & origin

Language spoken at home (age 5+)

Language	Count	%
English only	35,278	95.0%
Spanish	1,041	3.0%
Other Indo-European	650	1.8%
Asian & Pacific Islander	156	0.4%
Other languages	191	0.5%

Place of birth & citizenship

Origin	Count	%
Native born (US)	34,981	94.2%
Born in same state	34,627	93.2%
Born in different state	27,991	75.4%
Foreign born	354	1.0%
Naturalized citizen	2,159	5.8%
Not a US citizen	1,470	68.1%

Ancestry

Ancestry	Count	%
Italian	6,465	17.4%
French	4,530	12.2%
Arab	1,448	3.9%
Irish	511	1.4%
English	496	1.3%

Ancestry	Count	%
Polish	286	0.8%
Norwegian	163	0.4%
German	55	0.1%
Dutch	48	0.1%

Technology access

Metric	% of households
Computer access	38.6%
Internet access	91.7%

Source: U.S. Census Bureau, American Community Survey 2025 estimates.

Frequently asked questions about ZIP code 18951

What city is ZIP code 18951 in?

ZIP code 18951 is primarily assigned to Quakertown, Pennsylvania.

What county is ZIP code 18951 in?

ZIP code 18951 falls within Bucks County, Pennsylvania.

Is ZIP code 18951 mostly owner-occupied?

81% of occupied units in ZIP code 18951 are owner-occupied, well above the national average.

Does ZIP code 18951 have a large retiree population?

35% of households in ZIP code 18951 receive Social Security income, suggesting a significant retiree or disability population.

What is the typical home value in ZIP code 18951?

The median home value in ZIP code 18951 is $325,900.

What is the population of ZIP code 18951?

ZIP code 18951 has an estimated population of 37,140 residents, with a density of 518 people per square mile.

What timezone is ZIP code 18951 in?

ZIP code 18951 observes the EST timezone.