18018 ZIP Code — Bethlehem, PA

Northampton County, Pennsylvania

ZIP code 18018 is located in Bethlehem, Pennsylvania, within Northampton County. It covers approximately 5.17 square miles and serves a population of 31,479 residents. This is a standard ZIP code in the Eastern (ET) timezone, served by area code 610/484.

About ZIP code 18018

The housing stock consists of a mix of housing types. Most homes were built in the pre-1940, giving the area an established character. Median home value is $204,900. Owner-occupancy sits near the national average at 54%.

The gap between median ($69,247) and mean household income suggests income inequality — a small number of higher earners pull the average up. Poverty affects 18% of residents, above the national average. 33% 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 23 minutes is near the national average.

Educational attainment is near the national average, with 37% of residents holding a bachelor's degree or higher.

Overall, ZIP code 18018 reflects a community defined by economic challenges above the national average and a significant Social Security-dependent population.

31,479

population

5.17

sq mi land

Standard

ZIP type

Eastern (ET)

timezone

18018 ZIP code map

Cities in ZIP code 18018

Below are the cities the US Postal Service accepts for ZIP code 18018. Using any city not on this list may result in mail delivery delays.

City	Status
Bethlehem	Preferred

Nearby ZIP codes

18016 Bethlehem (1.3 mi) 18017 Bethlehem (2 mi) 18109 Allentown (2 mi) 18003 Lehigh Valley (2.2 mi) 18015 Bethlehem (3.4 mi) 18025 Bethlehem (4 mi) 18101 Allentown (4.2 mi) 18020 Bethlehem (4.2 mi) 18032 Catasauqua (4.3 mi) 18102 Allentown (4.7 mi) 18055 Hellertown (5.6 mi) 18052 Whitehall (6 mi)

Demographics updated 05/2026

Population
Total population	31,479
Population density	6,089 / sq mi
State FIPS	42
County FIPS	095

Geography
Land area	5.17 sq mi
Water area	0.13 sq mi
Latitude	40.6304
Longitude	-75.3943
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	43.0%	34.3%	39.8%
$50k – $100k	30.9%	31.7%	30.8%
$100k – $200k	20.6%	26.5%	22.4%
Over $200k	5.5%	7.5%	7.1%

Demographics & statistics

31,479

Population

6,089

People per sq mi

38.2

Median age

$69,247

Median household income

$46,477

Per capita income

$204,900

Median home value

$1,213

Median monthly rent

53.5%

Home ownership

18.4%

Poverty rate

4.2%

Unemployment

8,061

Housing units

36.9%

Bachelor's or higher

Age distribution

Male Female

695

Under 5

745

610

5–9

653

726

10–14

778

1,053

15–19

1,129

1,391

20–24

1,490

2,417

25–34

2,590

2,006

35–44

2,151

1,675

45–54

1,795

881

55–59

944

936

60–64

1,004

1,437

65–74

1,541

887

75–84

950

480

85+

515

← Male

Female →

Age summary

Group	Count	%
Under 18	5,105	16.2%
18 and over	26,374	83.8%
65 and over	5,810	18.5%
Median age	38.2 years

Race & ethnicity

White 65.1%

Hispanic or Latino 12.8%

Two or more races 7.8%

Other race 7.3%

Black or African American 5.4%

Asian 1.3%

American Indian / Alaska Native 0.2%

Group	Count	%
White	23,512	65.1%
Hispanic or Latino	4,641	12.8%
Two or more races	2,833	7.8%
Other race	2,622	7.3%
Black or African American	1,958	5.4%
Asian	474	1.3%
American Indian / Alaska Native	79	0.2%

Household income

Income range	This ZIP	County avg	State avg
Under $50k	43.0%	34.3%	39.8%
$50k – $100k	30.9%	31.7%	30.8%
$100k – $200k	20.6%	26.5%	22.4%
Over $200k	5.5%	7.5%	7.1%

Under $10k 3.8%

$10k–$15k 4.2%

$15k–$25k 7.2%

$25k–$35k 10.0%

$35k–$50k 11.8%

$50k–$75k 18.5%

$75k–$100k 13.0%

$100k–$150k 17.9%

$150k–$200k 6.2%

$200k+ 7.3%

Range	% of households
Under $10k	3.8%
$10k–$15k	4.2%
$15k–$25k	7.2%
$25k–$35k	10.0%
$35k–$50k	11.8%
$50k–$75k	18.5%
$75k–$100k	13.0%
$100k–$150k	17.9%
$150k–$200k	6.2%
$200k+	7.3%
Median income	$69,247

Housing

Home values

Under $50k 2.7%

$50k–$100k 2.2%

$100k–$150k 13.9%

$150k–$200k 29.1%

$200k–$300k 35.3%

$300k–$500k 12.5%

$500k–$1M 3.3%

$1M+ 1.0%

Housing overview

Metric	Value
Median home value	$204,900
Median rent / month	$1,213
Owner occupied	53.5%
Renter occupied	46.5%
Vacant	5.9%
Single-family detached	34.8%
Large apartment buildings	10.1%
Mobile homes	0.2%
Median rooms	5.6
Avg household size (owned)	2.34

Year built

Era	%
2020 or later	0.0%
2010–2019	1.1%
2000–2009	3.1%
1990–1999	3.3%
1980–1989	5.9%
1970–1979	11.7%
1960–1969	9.7%
1950–1959	18.8%
1940–1949	7.9%
1939 or earlier	38.4%

Bedrooms

Size	% of units
No bedroom (studio)	2.7%
1 bedroom	20.2%
2 bedrooms	21.9%
3 bedrooms	38.9%
4 bedrooms	12.3%
5+ bedrooms	4.1%

Vehicles per household

Vehicles	% of households
No vehicle	8.9%
1 vehicle	46.0%
2 vehicles	33.5%
3 or more	11.6%

Heating fuel

Fuel type	%
Utility gas	47.7%
Electricity	31.4%
Propane / LP gas	2.1%
Fuel oil	17.8%
Wood	0.2%
No fuel used	0.6%

Households & families

Household type	Count	%
Married-couple family	4,487	33.3%
Cohabiting couple	1,417	10.5%
Male householder, no spouse	2,706	20.1%
Female householder, no spouse	4,880	36.2%
Households with children under 18	2,717	20.1%
Households with seniors (65+)	4,304	31.9%
Average household size	2.21

Marital status

Status	Male	Female
Never married	47.4%	38.7%
Married	38.6%	32.9%
Separated	1.4%	3.4%
Widowed	2.6%	10.4%
Divorced	10.0%	14.5%

Education

Less than 9th grade 2.3%

Some HS, no diploma 6.4%

HS graduate 29.0%

Some college, no degree 16.7%

Associate's degree 8.7%

Bachelor's degree 23.8%

Graduate / professional 13.1%

Metric	%
HS diploma or higher	91.2%
Bachelor's or higher	36.9%

School enrollment (ages 3–17)

Type	Count	%
Nursery / preschool	139	2.0%
Kindergarten	351	4.9%
Elementary school	2,057	29.0%
High school	1,323	18.7%
College / grad school	3,221	45.4%

Employment

Industry of employment

Education & healthcare 27.6%

Manufacturing 12.5%

Retail trade 10.1%

Arts, food & hospitality 10.0%

Professional & management 9.4%

Transportation & utilities 7.3%

Other services 5.1%

Finance & real estate 5.0%

Construction 4.2%

Wholesale trade 3.2%

Public administration 3.1%

Information 1.9%

Agriculture & mining 0.5%

Occupation

Category	%
Management, business & arts	40.4%
Service	18.4%
Sales & office	18.3%
Natural resources & construction	6.2%
Production & transportation	16.7%

Employment type

Type	%
Private sector	85.1%
Government	9.5%
Self-employed	5.4%
Unpaid family workers	0.0%

Commute

Method	%
Drive alone	74.5%
Carpool	6.4%
Public transit	2.4%
Walk	2.5%
Work from home	12.6%
Other means	1.6%
Avg commute (minutes)	22.6

Poverty

All people 18.4%

Under 18 years 37.1%

18 and over 14.7%

Married-couple families 4.9%

Female-led households 24.9%

Income support

Source	% of households
Social Security	33.0%
Retirement income	24.9%
Supplemental Security	5.3%
Cash public assistance	5.6%
Food stamps / SNAP	14.4%

Health indicators

Condition	%
Obesity	32.5%
High blood pressure	32.2%
High cholesterol	31.4%
Diabetes	10.6%
Heart disease	7.0%
Stroke	3.2%
Asthma	10.1%
Arthritis	27.5%
Kidney disease	3.0%
Pulmonary disease	7.1%
Cancer	7.1%

Behavior / access	%
Smoking	17.3%
Binge drinking	18.0%
No physical activity	24.0%
Less than 7 hrs sleep	36.2%
Depression	21.8%
Fair or poor health	14.4%
Poor mental health	15.4%
Poor physical health	10.6%
No health insurance	12.1%
Visited doctor (checkup)	78.1%
Visited dentist	65.7%
Cholesterol screening	88.7%
Teeth loss	14.6%

Veterans & disability

Veterans	Count	%
Civilian veterans	1,581	6.0%

Disability	%
Any disability	13.0%
Under 18	6.7%
18–64 years	8.5%
65 and over	35.7%

Health insurance coverage

Type	%
Private insurance	66.8%
Public insurance	40.7%
No insurance	6.8%
Uninsured under 19	4.3%

Language & origin

Language spoken at home (age 5+)

Language	Count	%
English only	30,039	95.4%
Spanish	2,356	7.8%
Other Indo-European	2,031	6.8%
Asian & Pacific Islander	240	0.8%
Other languages	85	0.3%

Place of birth & citizenship

Origin	Count	%
Native born (US)	28,771	91.4%
Born in same state	26,683	84.8%
Born in different state	18,576	59.0%
Foreign born	2,088	6.6%
Naturalized citizen	2,708	8.6%
Not a US citizen	1,528	56.4%

Ancestry

Ancestry	Count	%
Italian	3,468	11%
Arab	1,855	5.9%
French	1,765	5.6%
Irish	607	1.9%
English	287	0.9%

Ancestry	Count	%
Dutch	189	0.6%
Polish	167	0.5%
Norwegian	136	0.4%
German	35	0.1%

Technology access

Metric	% of households
Computer access	42.9%
Internet access	92.3%

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

Frequently asked questions about ZIP code 18018

What city is ZIP code 18018 in?

ZIP code 18018 is primarily assigned to Bethlehem, Pennsylvania.

What county is ZIP code 18018 in?

ZIP code 18018 falls within Lehigh County, Pennsylvania.

What is the poverty rate in ZIP code 18018?

18% of residents in ZIP code 18018 live below the poverty line, above the national average.

What is the population of ZIP code 18018?

ZIP code 18018 has an estimated population of 31,479 residents, with a density of 6,086 people per square mile.

What is the typical home value in ZIP code 18018?

The median home value in ZIP code 18018 is $204,900.

What is the median household income in ZIP code 18018?

The median household income in ZIP code 18018 is $69,247, below the national median of ~$75,000.

What timezone is ZIP code 18018 in?

ZIP code 18018 observes the EST timezone.