PlainZIP

Breinigsville, PA · standard

ZIP Code 18031

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

7,528
213/sq mi
$113,625
Median income
$373,400
Median home value
53.5%
Bachelor's or higher

The verdict

Breinigsville pairs an upper-quartile household income with upper-quartile home values, in a low-density, homeowner-dominated area.

Top 12%
household income, US ZIPs
Top 23%
home value, US ZIPs
213
people per sq mi
76%
owner-occupied homes

Source: U.S. Census Bureau ACS 5-Year Estimates (2019–2023). Percentiles rank ZIP 18031 against every reporting US ZIP.

ZIP code 18031 is a mid-sized community (a standard USPS delivery area) in Breinigsville, Lehigh County, Pennsylvania, home to 7,528 residents across 35.4 square miles, a density of 213 people per square mile, in the New York time zone.

ZIP 18031 skews affluent, with a median household income of $113,625 (46% above the Pennsylvania average), while per-capita income is $57,645. 3.7% of residents live below the poverty line, and the unemployment rate reads 2.8%. On housing, the median home value is $373,400 (64% above the state average) with median rent at $1,949 per month, and 76.3% of occupied units are owner-occupied.

This is a highly-educated ZIP: 53.5% of adults hold a bachelor's degree or higher, the median age is 39.4, and the average commute is 24 minutes. We also surface 10 nearby ZIP codes within roughly 10 miles and 6 additional ZIPs sharing Lehigh County, so you can benchmark 18031 against its immediate geography rather than a 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 18031

Top 5 sectors by establishment count in Breinigsville, PA

Which industries have the most business establishments in ZIP 18031.

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 18031, Breinigsville, 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

7,528

Population

35.4

Area (sq mi)

213

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 18031?

39.4

Median Age

43.7%

Male

56.3%

Female

20.0%

Foreign-Born

White 62.1%
African American 5.1%
Asian 13.6%
American Indian or Alaska Native 0.4%
Native Hawaiian or Pacific Islander 0.0%
Two or More Ethnicities 15.9%
Hispanic or Latino 17.8%

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?

$113,625

Median Household Income

+46% vs state

$57,645

Per Capita Income

3.7%

Poverty Rate

2.8%

Unemployment Rate

24.0 min

Mean Commute Time

How ZIP 18031 ranks nationally

Breinigsville, PA household income vs. every US ZIP code

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

$113,625 Top 12% higher than 88% 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%). Below this entry. $100,000–$120,000: 2,855 US ZIPs (9%). This entry sits in this band. $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 74.7%
Bachelor's Degree or Higher 53.5%

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

What does housing look like?

4,634

Total Housing Units

4,098

Occupied Units

536

Vacant Units

2.81

Avg Household Size

Occupancy Type

Owner 76.3%
Renter 23.7%

$373,400

Median Home Value

+64% vs state

$1,949

Median Rent

2003

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

+5.9%

YoY Change (2024)

235

HPI Index (2000 = 100)

+135%

Total Change Since 2000

Home values in ZIP 18031 have increased 5.9% over the past year (2024). Since 2000, this ZIP has seen +135% cumulative appreciation.

Year Annual Change HPI Index
2020 +4.8% 155
2021 +13.1% 175
2022 +14.2% 200
2023 +11.4% 222
2024 +5.9% 235

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 214 business establishments in ZIP 18031, employing approximately 16,516 people with a combined annual payroll of $846,582,000.

214

Businesses

16,516

Employees

$846.6M

Annual Payroll

12

Industry Sectors

Industry Establishments % of Total
Transportation and warehousing 46 21.5%
Professional, scientific, and technical services 28 13.1%
Wholesale trade 19 8.9%
Administrative and support and waste management and remediation services 17 7.9%
Manufacturing 16 7.5%
Retail trade 16 7.5%
Health care and social assistance 16 7.5%
Other services (except public administration) 15 7.0%
Construction 14 6.5%
Accommodation and food services 10 4.7%
Real estate and rental and leasing 8 3.7%
Arts, entertainment, and recreation 4 1.9%

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 18031 vs 18051 →

ZIP 18031 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 18031 ranks #2 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 18031 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 18031 ranks #3 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
18051 Fogelsville, PA 3,327 2.8 mi
19538 Maxatawny, PA 64 2.5 mi
18087 Trexlertown, PA 738 3.0 mi
18195 Allentown, PA 0 2.6 mi
18106 Allentown, PA 6,889 3.3 mi
18011 Alburtis, PA 5,450 5.7 mi
18046 East Texas, PA 64 4.9 mi
19562 Topton, PA 2,622 4.3 mi
19539 Mertztown, PA 4,597 4.8 mi
18069 Orefield, PA 8,017 5.3 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 Breinigsville, PA Pennsylvania

Frequently Asked Questions

What county is ZIP code 18031 in? ▼
ZIP code 18031 (Breinigsville) 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 18031? ▼
ZIP code 18031 in Breinigsville, PA has a population of 7,528 according to the Census Bureau ACS 2023 estimates.
What is the median household income in ZIP 18031? ▼
The median household income in ZIP 18031 is $113,625, which is 49% above the national average of $76,288.
What is the average home value in ZIP 18031? ▼
The median home value in ZIP 18031 is $373,400, which is 34% above the national average of $278,155.
What is the demographic makeup of ZIP 18031? ▼
The largest racial group in ZIP 18031 is White at 62.1%. Hispanic or Latino residents make up 17.8% of the population.
How many businesses are in ZIP code 18031? ▼
ZIP code 18031 has 214 business establishments employing approximately 16,516 people, according to Census Bureau ZIP Code Business Patterns (ZBP) 2023 data.
What are the main industries in ZIP code 18031? ▼
The top industries by establishment count in ZIP 18031 are: Transportation and warehousing (46), Professional, scientific, and technical services (28), Wholesale trade (19). There are 12 industry sectors represented in total.
How have home values changed in ZIP code 18031? ▼
According to the FHFA House Price Index, home values in ZIP 18031 increased by 5.9% in 2024. Since 2000, home values in this ZIP have appreciated by approximately 135%. 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 18031? ▼
In ZIP code 18031, 74.7% of residents aged 25+ have a high school diploma or higher, and 53.5% 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 18031? ▼
The mean commute time for workers in ZIP code 18031 is 24.0 minutes according to Census ACS data. The national average is roughly 26 minutes, so commuters here spend less time traveling to work than typical.
What percentage of residents own vs. rent in ZIP 18031? ▼
In ZIP code 18031, approximately 76.3% of occupied housing units are owner-occupied and 23.7% are renter-occupied, based on Census ACS 2023 data.
What is the poverty rate in ZIP code 18031? ▼
The poverty rate in ZIP code 18031 is 3.7% 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.