18037 ZIP Code — Coplay, PA

Lehigh County, Pennsylvania

ZIP code 18037 is located in Coplay, Pennsylvania, within Lehigh County. It covers approximately 7.61 square miles and serves a population of 7,360 residents. This is a standard ZIP code in the Eastern (ET) timezone, served by area code 610/484.

About ZIP code 18037

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 $236,900. Owner-occupancy is high at 85%, well above the national average.

Median household income is $77,975. The poverty rate of 7% is below the national average. 39% 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 26 minutes is near the national average.

Educational attainment is near the national average, with 29% of residents holding a bachelor's degree or higher.

Overall, ZIP code 18037 reflects a community defined by high homeownership and a significant Social Security-dependent population.

7,360

population

7.61

sq mi land

Standard

ZIP type

Eastern (ET)

timezone

18037 ZIP code map

Cities in ZIP code 18037

Below are the cities the US Postal Service accepts for ZIP code 18037. Using any city not on this list may result in mail delivery delays.

City	Status
Coplay	Acceptable
Coplay	Preferred

Nearby ZIP codes

18052 Whitehall (2.4 mi) 18059 Laurys Station (2.6 mi) 18067 Northampton (3.6 mi) 18032 Catasauqua (3.9 mi) 18035 Cherryville (4.6 mi) 18104 Allentown (4.7 mi) 18078 Schnecksville (4.9 mi) 18088 Walnutport (5.5 mi) 18080 Slatington (5.8 mi) 18003 Lehigh Valley (6 mi) 18102 Allentown (6 mi) 18109 Allentown (6.1 mi)

Demographics updated 05/2026

Population
Total population	7,360
Population density	967 / sq mi
State FIPS	42
County FIPS	077

Geography
Land area	7.61 sq mi
Water area	0.15 sq mi
Latitude	40.6829
Longitude	-75.5334
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	40.1%	37.9%	39.8%
$50k – $100k	31.2%	30.5%	30.8%
$100k – $200k	21.8%	24.2%	22.4%
Over $200k	6.9%	7.4%	7.1%

Demographics & statistics

7,360

Population

967

People per sq mi

45.9

Median age

$77,975

Median household income

$41,981

Per capita income

$236,900

Median home value

$1,152

Median monthly rent

84.7%

Home ownership

6.9%

Poverty rate

1.5%

Unemployment

2,675

Housing units

28.7%

Bachelor's or higher

Age distribution

Male Female

153

Under 5

164

216

5–9

231

233

10–14

249

232

15–19

249

207

20–24

222

284

25–34

305

420

35–44

451

553

45–54

593

337

55–59

361

292

60–64

312

380

65–74

408

185

75–84

198

85+

← Male

Female →

Age summary

Group	Count	%
Under 18	1,627	22.1%
18 and over	5,733	77.9%
65 and over	1,296	17.6%
Median age	45.9 years

Race & ethnicity

White 77.5%

Two or more races 10.4%

Hispanic or Latino 9.3%

Other race 1.9%

Black or African American 0.8%

American Indian / Alaska Native 0.2%

Group	Count	%
White	6,289	77.5%
Two or more races	841	10.4%
Hispanic or Latino	759	9.3%
Other race	151	1.9%
Black or African American	61	0.8%
American Indian / Alaska Native	15	0.2%

Household income

Income range	This ZIP	County avg	State avg
Under $50k	40.1%	37.9%	39.8%
$50k – $100k	31.2%	30.5%	30.8%
$100k – $200k	21.8%	24.2%	22.4%
Over $200k	6.9%	7.4%	7.1%

Under $10k 2.6%

$10k–$15k 0.8%

$15k–$25k 10.8%

$25k–$35k 7.1%

$35k–$50k 11.2%

$50k–$75k 13.8%

$75k–$100k 15.6%

$100k–$150k 15.8%

$150k–$200k 11.4%

$200k+ 11.0%

Range	% of households
Under $10k	2.6%
$10k–$15k	0.8%
$15k–$25k	10.8%
$25k–$35k	7.1%
$35k–$50k	11.2%
$50k–$75k	13.8%
$75k–$100k	15.6%
$100k–$150k	15.8%
$150k–$200k	11.4%
$200k+	11.0%
Median income	$77,975

Housing

Home values

Under $50k 5.8%

$50k–$100k 6.6%

$100k–$150k 6.7%

$150k–$200k 18.9%

$200k–$300k 33.5%

$300k–$500k 23.0%

$500k–$1M 5.4%

Housing overview

Metric	Value
Median home value	$236,900
Median rent / month	$1,152
Owner occupied	84.7%
Renter occupied	15.3%
Vacant	2.7%
Single-family detached	52.9%
Large apartment buildings	0.8%
Mobile homes	7.0%
Median rooms	6.3
Avg household size (owned)	2.43

Year built

Era	%
2020 or later	1.1%
2010–2019	4.3%
2000–2009	3.9%
1990–1999	18.9%
1980–1989	11.9%
1970–1979	9.9%
1960–1969	6.4%
1950–1959	11.2%
1940–1949	2.7%
1939 or earlier	29.6%

Bedrooms

Size	% of units
No bedroom (studio)	0.9%
1 bedroom	6.4%
2 bedrooms	21.4%
3 bedrooms	49.6%
4 bedrooms	18.4%
5+ bedrooms	3.3%

Vehicles per household

Vehicles	% of households
No vehicle	2.0%
1 vehicle	37.1%
2 vehicles	37.4%
3 or more	23.5%

Heating fuel

Fuel type	%
Utility gas	23.5%
Electricity	46.4%
Propane / LP gas	1.3%
Fuel oil	24.1%
Wood	3.8%
No fuel used	0.4%

Households & families

Household type	Count	%
Married-couple family	1,467	48.0%
Cohabiting couple	226	7.4%
Male householder, no spouse	517	16.9%
Female householder, no spouse	846	27.7%
Households with children under 18	871	28.5%
Households with seniors (65+)	934	30.6%
Average household size	2.41

Marital status

Status	Male	Female
Never married	31.6%	27.3%
Married	54.2%	46.4%
Separated	0.0%	0.9%
Widowed	3.8%	9.5%
Divorced	10.5%	15.9%

Education

Less than 9th grade 2.7%

Some HS, no diploma 3.2%

HS graduate 37.5%

Some college, no degree 15.1%

Associate's degree 12.8%

Bachelor's degree 18.3%

Graduate / professional 10.3%

Metric	%
HS diploma or higher	94.1%
Bachelor's or higher	28.7%

School enrollment (ages 3–17)

Type	Count	%
Nursery / preschool	61	3.6%
Kindergarten	113	6.8%
Elementary school	744	44.5%
High school	423	25.3%
College / grad school	331	19.8%

Employment

Industry of employment

Education & healthcare 32.3%

Manufacturing 13.3%

Retail trade 11.6%

Transportation & utilities 9.4%

Finance & real estate 7.8%

Arts, food & hospitality 5.5%

Construction 4.6%

Professional & management 3.7%

Public administration 3.7%

Other services 3.6%

Information 2.8%

Wholesale trade 1.3%

Agriculture & mining 0.2%

Occupation

Category	%
Management, business & arts	42.1%
Service	11.3%
Sales & office	24.7%
Natural resources & construction	7.4%
Production & transportation	14.5%

Employment type

Type	%
Private sector	84.3%
Government	11.1%
Self-employed	4.5%
Unpaid family workers	0.0%

Commute

Method	%
Drive alone	87.0%
Carpool	5.2%
Public transit	0.0%
Walk	0.5%
Work from home	7.3%
Other means	0.0%
Avg commute (minutes)	25.7

Poverty

All people 6.9%

Under 18 years 14.2%

18 and over 5.0%

Married-couple families 1.9%

Female-led households 17.0%

Income support

Source	% of households
Social Security	38.8%
Retirement income	31.0%
Supplemental Security	3.7%
Cash public assistance	2.1%
Food stamps / SNAP	7.2%

Health indicators

Condition	%
Obesity	33.9%
High blood pressure	31.9%
High cholesterol	33.9%
Diabetes	9.8%
Heart disease	6.4%
Stroke	2.8%
Asthma	10.0%
Arthritis	26.6%
Kidney disease	2.7%
Pulmonary disease	6.9%
Cancer	7.1%

Behavior / access	%
Smoking	18.3%
Binge drinking	19.1%
No physical activity	22.5%
Less than 7 hrs sleep	37.1%
Depression	22.0%
Fair or poor health	12.9%
Poor mental health	15.1%
Poor physical health	10.2%
No health insurance	10.0%
Visited doctor (checkup)	78.5%
Visited dentist	69.5%
Cholesterol screening	90.6%
Teeth loss	13.2%

Veterans & disability

Veterans	Count	%
Civilian veterans	436	7.6%

Disability	%
Any disability	13.2%
Under 18	3.7%
18–64 years	12.1%
65 and over	29.2%

Health insurance coverage

Type	%
Private insurance	74.4%
Public insurance	38.1%
No insurance	1.6%
Uninsured under 19	0.0%

Language & origin

Language spoken at home (age 5+)

Language	Count	%
English only	7,043	95.7%
Spanish	206	2.9%
Other Indo-European	85	1.2%
Asian & Pacific Islander	76	1.1%
Other languages	0	0.0%

Place of birth & citizenship

Origin	Count	%
Native born (US)	7,004	95.2%
Born in same state	6,837	92.9%
Born in different state	5,396	73.3%
Foreign born	167	2.3%
Naturalized citizen	356	4.8%
Not a US citizen	324	91.0%

Ancestry

Ancestry	Count	%
Italian	803	10.9%
French	528	7.2%
Arab	338	4.6%
Irish	106	1.4%

Ancestry	Count	%
English	47	0.6%
Polish	8	0.1%
Norwegian	6	0.1%

Technology access

Metric	% of households
Computer access	41.5%
Internet access	86.0%

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

Frequently asked questions about ZIP code 18037

What city is ZIP code 18037 in?

ZIP code 18037 is primarily assigned to Coplay, Pennsylvania.

What county is ZIP code 18037 in?

ZIP code 18037 falls within Lehigh County, Pennsylvania.

Is ZIP code 18037 mostly owner-occupied?

85% of occupied units in ZIP code 18037 are owner-occupied, well above the national average.

Does ZIP code 18037 have a large retiree population?

39% of households in ZIP code 18037 receive Social Security income, suggesting a significant retiree or disability population.

What is the population of ZIP code 18037?

ZIP code 18037 has an estimated population of 7,360 residents, with a density of 967 people per square mile.

What is the median household income in ZIP code 18037?

The median household income in ZIP code 18037 is $77,975, above the national median of ~$75,000.

What timezone is ZIP code 18037 in?

ZIP code 18037 observes the EST timezone.