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 High-density area
- $83,542
- Median income Above-median income area
- $256,600
- Median home value Near-median home value
- 28.5%
- Bachelor's or higher Near-average bachelor's attainment
National ZIP placement
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.
FHFA HPI release change
What changed in the latest House Price Index year
- FHFA House Price Index values in ZIP 18037 (Coplay, PA) rose +6.5% from 2023 to 2024. The all-transactions index moved from 235.4 in 2023 to 250.6 in 2024 (2000 = 100).
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 average Pennsylvania ZIP), while per-capita income is $41,714. Both reported hardship measures are comparatively low in absolute terms: poverty is 7.5% and unemployment is 1.8%. Median home value is $256,600 (13% above the average Pennsylvania ZIP) and median rent is $1,203; 79.1% of occupied homes 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. The page also surfaces 10 ZIP codes within roughly 10 miles and 6 more in Lehigh County, so 18037 can be compared with both its immediate and county-level context.
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.
- Other services (except public administration)
Other services (except public administration)
15 establishments
- Construction
Construction
14 establishments
- Accommodation and food services
Accommodation and food services
12 establishments
- Retail trade
Retail trade
11 establishments
- Health care and social assistance
Health care and social assistance
8 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, 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
Who lives in ZIP 18037?
44.3
Median Age
46.7%
Male
53.3%
Female
2.6%
Foreign-Born
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 ZIP avg
$41,714
Per Capita Income
7.5%
Poverty Rate
1.8%
Unemployment Rate
27.7 min
Mean Commute Time
How ZIP 18037 ranks among Pennsylvania ZIPs
Coplay, PA household income vs. every Pennsylvania ZIP code
Median household income among 1,642 reporting Pennsylvania ZIPs (this ZIP's population is too small for a reliable national-corpus placement)
$83,542 Top 29% higher than 71% of 1,642 Pennsylvania ZIPs
Each bar is a $20K-wide band; taller bars hold more Pennsylvania 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?
Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)
What does housing look like?
Housing stock: occupied vs vacant
3,160housing units
3,160
Total Housing Units
3,035
Occupied Units
125
Vacant Units
2.46
Avg Household Size
Occupancy Type
$256,600
Median Home Value
+13% vs state ZIP avg
$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.
- 18104
Allentown (18104)
43,236 residents
- 18052
Whitehall (18052)
26,902 residents
- 18067
Northampton (18067)
17,852 residents
- 18032 9,285
Catasauqua (18032)
9,285 residents
- 18088 8,375
Walnutport (18088)
8,375 residents
- 18069 8,017
Orefield (18069)
8,017 residents
- 18078 7,074
Schnecksville (18078)
7,074 residents
- 18037 7,070
Coplay (18037)
7,070 residents
- 18059 1,228
Laurys Station (18059)
1,228 residents
What this shows Among its immediate neighbors, ZIP 18037 ranks #8 by population - useful context the national average alone can't give.
ZIP 18037 vs its nearest neighbors, by median income
Median household income of this ZIP and the closest reporting ZIP codes within ~10 miles.
- 18059
Laurys Station (18059)
$167,961 median income
- 18078
Schnecksville (18078)
$120,857 median income
- 18069
Orefield (18069)
$117,895 median income
- 18104
Allentown (18104)
$94,601 median income
- 18067
Northampton (18067)
$93,652 median income
- 18037
Coplay (18037)
$83,542 median income
- 18088
Walnutport (18088)
$82,083 median income
- 18032
Catasauqua (18032)
$81,098 median income
- 18052
Whitehall (18052)
$75,665 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.
| 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 |
Nationwide ZIPs with similar ACS profiles
Two Census-derived peer sets for ZIP 18037, both outside PA so the neighborhoods are not geographic containment (Nearby and same-county blocks stay local).
Similar population
Nearest cross-state ZIPs by resident population (7,070 here; floor ≥1,000).
Similar median household income
Nearest cross-state ZIPs by ACS median household income.
More ZIP Codes in Lehigh County
Related Areas
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.
Related
Take this with you
What to do with ZIP 18037's numbers, next.
- See how ZIP 18037 compares to a neighboring ZIP code on the same Census fields Compare this ZIP
- Check where Coplay, PA ranks among every U.S. ZIP code on income, education, or homeownership View national rankings
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ZIP Code Tabulation Areas (ZCTAs) are Census Bureau approximations of USPS ZIP codes; figures describe the ZCTA area, not any single address within it.