18920 ZIP Code — Erwinna, PA

Bucks County, Pennsylvania

ZIP code 18920 is located in Erwinna, Pennsylvania, within Bucks County. It covers approximately 3.86 square miles and serves a population of 464 residents. This is a standard ZIP code in the Eastern (ET) timezone, served by area code 610/484.

About ZIP code 18920

The housing stock consists of predominantly single-family detached homes. Most homes were built in the pre-1940, giving the area an established character. Median home value is $490,500. Owner-occupancy sits near the national average at 60%.

Median household income is $136,583. The poverty rate of 7% is below the national average.

The dominant occupation class is management, business, and professional, with education and healthcare as the leading industry. An above-average commute of 42 minutes suggests many residents work outside the immediate area.

Educational attainment is near the national average, with 40% of residents holding a bachelor's degree or higher.

464

population

3.86

sq mi land

Standard

ZIP type

Eastern (ET)

timezone

18920 ZIP code map

Cities in ZIP code 18920

Below are the cities the US Postal Service accepts for ZIP code 18920. Using any city not on this list may result in mail delivery delays.

City	Status
Erwinna	Preferred

Nearby ZIP codes

18972 Upper Black Eddy (2.6 mi) 18942 Ottsville (3.7 mi) 18947 Pipersville (4.4 mi) 08825 Frenchtown (4.6 mi) 08848 Milford (6 mi) 08556 Rosemont (6.9 mi) 18930 Kintnersville (6.9 mi) 08559 Stockton (7.9 mi) 18913 Carversville (8.4 mi) 08867 Pittstown (8.4 mi) 18077 Riegelsville (8.6 mi) 18933 Lumberville (9.2 mi)

Demographics updated 05/2026

Population
Total population	464
Population density	120 / sq mi
State FIPS	42
County FIPS	017

Geography
Land area	3.86 sq mi
Water area	0.00 sq mi
Latitude	40.4980
Longitude	-75.1005
Timezone	Eastern (ET)
Area code	610/484

Total population by age

Gender

Race & ethnicity

Economics updated 05/2026

Household income

Income range	This ZIP	County avg	State avg
Under $50k	28.3%	25.3%	39.8%
$50k – $100k	37.8%	28.0%	30.8%
$100k – $200k	25.2%	31.3%	22.4%
Over $200k	8.7%	15.4%	7.1%

Demographics & statistics

464

Population

120

People per sq mi

50.5

Median age

$136,583

Median household income

$53,771

Per capita income

$490,500

Median home value

$1,943

Median monthly rent

59.8%

Home ownership

6.7%

Poverty rate

5.3%

Unemployment

150

Housing units

40.2%

Bachelor's or higher

Age distribution

Male Female

Under 5

10–14

15–19

20–24

25–34

35–44

45–54

55–59

60–64

65–74

75–84

← Male

Female →

Age summary

Group	Count	%
Under 18	105	22.6%
18 and over	359	77.4%
65 and over	83	17.9%
Median age	50.5 years

Race & ethnicity

White 80.8%

Two or more races 15.3%

Asian 3.9%

Group	Count	%
White	375	80.8%
Two or more races	71	15.3%
Asian	18	3.9%

Household income

Income range	This ZIP	County avg	State avg
Under $50k	28.3%	25.3%	39.8%
$50k – $100k	37.8%	28.0%	30.8%
$100k – $200k	25.2%	31.3%	22.4%
Over $200k	8.7%	15.4%	7.1%

$15k–$25k 7.2%

$25k–$35k 17.5%

$50k–$75k 6.7%

$75k–$100k 5.7%

$100k–$150k 30.4%

$150k–$200k 16.0%

$200k+ 16.5%

Range	% of households
$15k–$25k	7.2%
$25k–$35k	17.5%
$50k–$75k	6.7%
$75k–$100k	5.7%
$100k–$150k	30.4%
$150k–$200k	16.0%
$200k+	16.5%
Median income	$136,583

Housing

Home values

$200k–$300k 23.3%

$300k–$500k 28.4%

$500k–$1M 48.3%

Housing overview

Metric	Value
Median home value	$490,500
Median rent / month	$1,943
Owner occupied	59.8%
Renter occupied	40.2%
Vacant	14.9%
Single-family detached	85.1%
Large apartment buildings	0.0%
Mobile homes	0.0%
Median rooms	6.0
Avg household size (owned)	2.58

Year built

Era	%
2020 or later	0.0%
2010–2019	0.0%
2000–2009	2.6%
1990–1999	18.4%
1980–1989	5.7%
1970–1979	4.4%
1960–1969	0.0%
1950–1959	0.0%
1940–1949	14.0%
1939 or earlier	54.8%

Bedrooms

Size	% of units
No bedroom (studio)	14.9%
1 bedroom	11.8%
2 bedrooms	18.0%
3 bedrooms	42.5%
4 bedrooms	12.7%
5+ bedrooms	0.0%

Vehicles per household

Vehicles	% of households
No vehicle	0.0%
1 vehicle	63.9%
2 vehicles	19.1%
3 or more	17.0%

Heating fuel

Fuel type	%
Utility gas	14.4%
Electricity	7.2%
Propane / LP gas	20.6%
Fuel oil	52.6%
Wood	5.2%

Households & families

Household type	Count	%
Married-couple family	79	40.7%
Cohabiting couple	43	22.2%
Male householder, no spouse	61	31.4%
Female householder, no spouse	11	5.7%
Households with children under 18	47	24.2%
Households with seniors (65+)	74	38.1%
Average household size	2.39

Marital status

Status	Male	Female
Never married	24.4%	41.0%
Married	54.7%	38.1%
Separated	0.0%	0.0%
Widowed	0.0%	11.9%
Divorced	20.9%	9.0%

Education

Less than 9th grade 0.0%

Some HS, no diploma 0.0%

HS graduate 23.1%

Some college, no degree 23.1%

Associate's degree 13.6%

Bachelor's degree 29.0%

Graduate / professional 11.2%

Metric	%
HS diploma or higher	100.0%
Bachelor's or higher	40.2%

School enrollment (ages 3–17)

Type	Count	%
Nursery / preschool	5	6.1%
Kindergarten	0	0.0%
Elementary school	56	68.3%
High school	0	0.0%
College / grad school	21	25.6%

Employment

Industry of employment

Education & healthcare 25.6%

Transportation & utilities 18.4%

Professional & management 18.0%

Construction 12.4%

Other services 8.4%

Arts, food & hospitality 6.0%

Retail trade 4.4%

Wholesale trade 4.0%

Public administration 2.8%

Occupation

Category	%
Management, business & arts	57.6%
Service	12.4%
Sales & office	12.8%
Natural resources & construction	8.0%
Production & transportation	9.2%

Employment type

Type	%
Private sector	94.4%
Government	5.6%
Self-employed	0.0%
Unpaid family workers	0.0%

Commute

Method	%
Drive alone	75.6%
Carpool	2.4%
Public transit	6.0%
Walk	0.0%
Work from home	10.0%
Other means	6.0%
Avg commute (minutes)	42.4

Poverty

All people 6.7%

Under 18 years 0.0%

18 and over 8.6%

Married-couple families 0.0%

Female-led households 0.0%

Income support

Source	% of households
Social Security	26.8%
Retirement income	21.6%
Supplemental Security	0.0%
Cash public assistance	5.7%
Food stamps / SNAP	0.0%

Health indicators

Condition	%
Obesity	26.5%
High blood pressure	35.6%
High cholesterol	37.3%
Diabetes	10.0%
Heart disease	7.1%
Stroke	2.8%
Asthma	9.0%
Arthritis	30.7%
Kidney disease	2.9%
Pulmonary disease	6.6%
Cancer	8.5%

Behavior / access	%
Smoking	14.7%
Binge drinking	16.8%
No physical activity	19.6%
Less than 7 hrs sleep	33.3%
Depression	19.3%
Fair or poor health	11.3%
Poor mental health	12.6%
Poor physical health	9.4%
No health insurance	7.5%
Visited doctor (checkup)	79.5%
Visited dentist	74.9%
Cholesterol screening	94.1%
Teeth loss	8.9%

Veterans & disability

Veterans	Count	%
Civilian veterans	7	1.9%

Disability	%
Any disability	2.8%
Under 18	0.0%
18–64 years	4.7%
65 and over	0.0%

Health insurance coverage

Type	%
Private insurance	94.6%
Public insurance	24.1%
No insurance	0.0%
Uninsured under 19	0.0%

Language & origin

Language spoken at home (age 5+)

Language	Count	%
English only	415	89.4%
Spanish	0	0.0%
Other Indo-European	0	0.0%
Asian & Pacific Islander	0	0.0%
Other languages	0	0.0%

Place of birth & citizenship

Origin	Count	%
Native born (US)	445	95.9%
Born in same state	445	95.9%
Born in different state	313	67.5%
Foreign born	0	0.0%
Naturalized citizen	19	4.1%
Not a US citizen	6	31.6%

Ancestry

Ancestry	Count	%
Italian	83	17.9%
French	79	17%

Ancestry	Count	%
Irish	12	2.6%

Technology access

Metric	% of households
Computer access	41.8%
Internet access	100.0%

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

Frequently asked questions about ZIP code 18920

What city is ZIP code 18920 in?

ZIP code 18920 is primarily assigned to Erwinna, Pennsylvania.

What county is ZIP code 18920 in?

ZIP code 18920 falls within Bucks County, Pennsylvania.

What is the median household income in ZIP code 18920?

The median household income in ZIP code 18920 is $136,583, above the national median of ~$75,000.

What is the typical home value in ZIP code 18920?

The median home value in ZIP code 18920 is $490,500.

What is the population of ZIP code 18920?

ZIP code 18920 has an estimated population of 464 residents, with a density of 120 people per square mile.

What timezone is ZIP code 18920 in?

ZIP code 18920 observes the EST timezone.