PlainZIP

Coplay, PA · standard

ZIP Code 18037

Lehigh County, Pennsylvania - Census ACS demographics, housing tenure, and business patterns, benchmarked against every US ZIP.

7,070
374/sq mi
$83,542
Median income
$256,600
Median home value
28.5%
Bachelor's or higher

The verdict

Coplay pairs an above-median household income with above-median home values, in a low-density, homeowner-dominated area.

Top 34%
household income, US ZIPs
Top 41%
home value, US ZIPs
374
people per sq mi
79%
owner-occupied homes

Source: U.S. Census Bureau ACS 5-Year Estimates (2019–2023). Percentiles rank ZIP 18037 against every reporting US ZIP.

ZIP code 18037 is a mid-sized community (a standard USPS delivery area) in Coplay, Lehigh County, Pennsylvania, home to 7,070 residents across 18.9 square miles, a density of 374 people per square mile, in the New York time zone.

ZIP 18037 lands in the middle-income range, with a median household income of $83,542 (7% above the Pennsylvania average), while per-capita income is $41,714. 7.5% of residents live below the poverty line, and the unemployment rate reads 1.8%. On housing, the median home value is $256,600 (13% above the state average) with median rent at $1,203 per month, and 79.1% of occupied units are owner-occupied.

Educational attainment sits below the national norm: 28.5% of adults hold a bachelor's degree or higher, the median age is 44.3, and the average commute is 28 minutes. A geography-based comparison follows: 10 ZIP codes within about 10 miles of 18037, plus 6 more within Lehigh County, give a clearer read than the national average alone.

Every figure on this page is sourced from the U.S. Census Bureau American Community Survey 5-Year Estimates (including median rent) and the FHFA House Price Index, no estimates, no proprietary scoring. Verify with Census →

Top industries in ZIP 18037

Top 5 sectors by establishment count in Coplay, PA

Which industries have the most business establishments in ZIP 18037.

establishments

What this shows Establishment counts come from the Census ZIP Code Business Patterns program, which counts physical business locations rather than employees or revenue.

Source U.S. Census Bureau · ZIP Code Business Patterns (ZBP) As of 2023

Source: U.S. Census Bureau, American Community Survey 5-Year Estimates + ZIP Code Business Patterns + FHFA HPI ACS demographics and median rent, ZBP business establishments, FHFA HPI for ZIP 18037, Coplay, PA · 2023 Census ACS 5-Year Estimates use a rolling 60-month sample for stable small-geography estimates; ZBP updated annually; FHFA HPI updated quarterly/annually.

Quick Facts

7,070

Population

18.9

Area (sq mi)

374

People / sq mi

New York

Time Zone

standard

ZIP Type

Neighborhood Scorecard
Get an A-F grade across income, safety, housing, rent, education, commute, and childcare for this ZIP code.
View Scorecard →

Who lives in ZIP 18037?

44.3

Median Age

46.7%

Male

53.3%

Female

2.6%

Foreign-Born

White 79.7%
African American 2.7%
Asian 0.5%
American Indian or Alaska Native 0.0%
Native Hawaiian or Pacific Islander 0.0%
Two or More Ethnicities 14.6%
Hispanic or Latino 16.0%

Hispanic or Latino is an ethnicity category from the Census Bureau and may overlap with other categories above.

Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)

How much do residents earn?

$83,542

Median Household Income

+7% vs state

$41,714

Per Capita Income

7.5%

Poverty Rate

1.8%

Unemployment Rate

27.7 min

Mean Commute Time

How ZIP 18037 ranks nationally

Coplay, PA household income vs. every US ZIP code

Median household income, the full national distribution, with this ZIP marked

$83,542 Top 34% higher than 66% of 30,318 US ZIPs

$0–$20,000: 118 US ZIPs (0%). Below this entry. $20,000–$40,000: 1,573 US ZIPs (5%). Below this entry. $40,000–$60,000: 7,092 US ZIPs (23%). Below this entry. $60,000–$80,000: 9,980 US ZIPs (33%). Below this entry. $80,000–$100,000: 5,778 US ZIPs (19%). This entry sits in this band. $100,000–$120,000: 2,855 US ZIPs (9%). Above this entry. $120,000–$140,000: 1,362 US ZIPs (4%). Above this entry. $140,000–$160,000: 686 US ZIPs (2%). Above this entry. $160,000–$180,000: 364 US ZIPs (1%). Above this entry. $180,000–$200,000: 186 US ZIPs (1%). Above this entry. $200,000–$220,000: 324 US ZIPs (1%). Above this entry. This ZIP $0 $200K+ every reporting US ZIP, bucketed by value

Each bar is a $20K-wide band; taller bars hold more US ZIPs. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.

Source U.S. Census Bureau, ACS 5-Year Estimates · 2019–2023

Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)

What is the education profile here?

High School Graduate or Higher 67.0%
Bachelor's Degree or Higher 28.5%

Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)

What does housing look like?

3,160

Total Housing Units

3,035

Occupied Units

125

Vacant Units

2.46

Avg Household Size

Occupancy Type

Owner 79.1%
Renter 20.9%

$256,600

Median Home Value

+13% vs state

$1,203

Median Rent

1974

Median Year Built

Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)

How have home values changed over time?

FHFA House Price Index, annual appreciation data based on repeat sales and appraisals

+6.5%

YoY Change (2024)

251

HPI Index (2000 = 100)

+151%

Total Change Since 2000

Home values in ZIP 18037 have increased 6.5% over the past year (2024). Since 2000, this ZIP has seen +151% cumulative appreciation.

Year Annual Change HPI Index
2020 +3.2% 174
2021 +13.2% 196
2022 +14.8% 226
2023 +4.3% 235
2024 +6.5% 251

Source: Federal Housing Finance Agency (FHFA) House Price Index, All-Transactions, Five-Digit ZIP Codes (Developmental Index). Index base = 100 in year 2000. Data through 2024. ZIP codes with few transactions may show missing values.

What businesses operate in this ZIP?

Census Bureau data shows 104 business establishments in ZIP 18037, employing approximately 914 people with a combined annual payroll of $33,723,000.

104

Businesses

914

Employees

$33.7M

Annual Payroll

13

Industry Sectors

Industry Establishments % of Total
Other services (except public administration) 15 14.4%
Construction 14 13.5%
Accommodation and food services 12 11.5%
Retail trade 11 10.6%
Health care and social assistance 8 7.7%
Professional, scientific, and technical services 7 6.7%
Administrative and support and waste management and remediation services 7 6.7%
Manufacturing 6 5.8%
Wholesale trade 5 4.8%
Finance and insurance 5 4.8%
Transportation and warehousing 4 3.9%
Information 4 3.9%
Arts, entertainment, and recreation 3 2.9%

Source: U.S. Census Bureau, ZIP Code Business Patterns (ZBP), 2023. Employment figures may include noise for disclosure avoidance.

Nearby ZIP Codes

Want a side-by-side? Compare 18037 vs 18059 →

ZIP 18037 vs its nearest neighbors, by population

Resident population of this ZIP and the closest reporting ZIP codes within ~10 miles.

residents

What this shows Among its immediate neighbors, ZIP 18037 ranks #8 by population - useful context the national average alone can't give.

Source U.S. Census Bureau · ACS 5-Year Estimates As of 2019–2023

ZIP 18037 vs its nearest neighbors, by median income

Median household income of this ZIP and the closest reporting ZIP codes within ~10 miles.

median income

What this shows By household income, ZIP 18037 ranks #6 of 9 neighboring ZIPs, local affluence varies block to block, not just metro to metro.

Source U.S. Census Bureau · ACS 5-Year Estimates As of 2019–2023
ZIP Code City Population Distance
18059 Laurys Station, PA 1,228 2.9 mi
18086 Treichlers, PA 398 3.8 mi
18052 Whitehall, PA 26,902 2.7 mi
18035 Cherryville, PA 241 4.5 mi
18104 Allentown, PA 43,236 4.9 mi
18078 Schnecksville, PA 7,074 3.9 mi
18088 Walnutport, PA 8,375 5.8 mi
18067 Northampton, PA 17,852 4.3 mi
18032 Catasauqua, PA 9,285 4.4 mi
18069 Orefield, PA 8,017 5.4 mi

More ZIP Codes in Lehigh County

18102 standard
Allentown, PA
Pop: 49,779
18103 standard
Allentown, PA
Pop: 45,336
18104 standard
Allentown, PA
Pop: 43,236
18018 standard
Bethlehem, PA
Pop: 32,413
18052 standard
Whitehall, PA
Pop: 26,902
18062 standard
Macungie, PA
Pop: 24,351

Related Areas

Lehigh County Coplay, PA Pennsylvania

Frequently Asked Questions

What county is ZIP code 18037 in? ▼
ZIP code 18037 (Coplay) is located in Lehigh County, Pennsylvania. Lehigh County contains multiple ZIP codes, see the full list at /counties/lehigh-pa.
What is the population of ZIP code 18037? ▼
ZIP code 18037 in Coplay, PA has a population of 7,070 according to the Census Bureau ACS 2023 estimates.
What is the median household income in ZIP 18037? ▼
The median household income in ZIP 18037 is $83,542, which is 10% above the national average of $76,288.
What is the average home value in ZIP 18037? ▼
The median home value in ZIP 18037 is $256,600, which is 8% below the national average of $278,155.
What is the demographic makeup of ZIP 18037? ▼
The largest racial group in ZIP 18037 is White at 79.7%. Hispanic or Latino residents make up 16.0% of the population.
How many businesses are in ZIP code 18037? ▼
ZIP code 18037 has 104 business establishments employing approximately 914 people, according to Census Bureau ZIP Code Business Patterns (ZBP) 2023 data.
What are the main industries in ZIP code 18037? ▼
The top industries by establishment count in ZIP 18037 are: Other services (except public administration) (15), Construction (14), Accommodation and food services (12). There are 13 industry sectors represented in total.
How have home values changed in ZIP code 18037? ▼
According to the FHFA House Price Index, home values in ZIP 18037 increased by 6.5% in 2024. Since 2000, home values in this ZIP have appreciated by approximately 151%. This is a developmental index based on repeat sales and appraisal data from Fannie Mae and Freddie Mac.
What is the education level in ZIP code 18037? ▼
In ZIP code 18037, 67.0% of residents aged 25+ have a high school diploma or higher, and 28.5% hold a bachelor's degree or higher. These figures come from the Census Bureau ACS 5-Year Estimates (2023).
What is the average commute time in ZIP 18037? ▼
The mean commute time for workers in ZIP code 18037 is 27.7 minutes according to Census ACS data. The national average is roughly 26 minutes, so commuters here spend more time traveling to work than typical.
What percentage of residents own vs. rent in ZIP 18037? ▼
In ZIP code 18037, approximately 79.1% of occupied housing units are owner-occupied and 20.9% are renter-occupied, based on Census ACS 2023 data.
What is the poverty rate in ZIP code 18037? ▼
The poverty rate in ZIP code 18037 is 7.5% according to Census Bureau ACS 2023 estimates. This measures the percentage of the population living below the federal poverty threshold.

Read our methodology to see how this data is sourced, computed, and verified.