ZIP Code 18031
standardSource:
Breinigsville · Lehigh County · Pennsylvania
- Population
- 7,528
- Median income
- $113,625
- Median home value
- $373,400
- Bachelor's or higher
- 53.5%
- Land area
- 35.4 sq mi
213/sq mi
▲ 49% vs US
higher than 88% of US ZIPs
▲ 34% vs US
higher than 77% of US ZIPs
Median age 39.4
New York
ZIP code 18031 in Breinigsville, Pennsylvania has a population of 7,528. The median household income is $113,625, which is 49% above the national average. Median home value is $373,400, 34% above the US average. 53.5% of residents hold a bachelor's degree or higher.
ZIP code 18031 is classified by USPS as a standard delivery area and covers roughly 35.4 square miles in Breinigsville, Lehigh County, Pennsylvania. The area is home to 7,528 residents, producing a population density of 213 people per square mile, and falls within the New York time zone. These USPS and Census boundary values drive every downstream statistic on this page, including the benchmarks that compare 18031 against Pennsylvania and the nation.
On the economic side, the median household income for ZIP 18031 sits at $113,625 (46% above the Pennsylvania average), while per-capita income is $57,645. The poverty rate stands at 3.7% and the unemployment rate at 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, a direct signal of whether 18031 behaves more like a homeowner neighborhood or a renter-heavy ZIP.
Education and household profile round out the picture: 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 is sourced from the U.S. Census Bureau American Community Survey 5-Year Estimates, HUD Fair Market Rents, and FHFA Home Price Index data, no estimates, no proprietary scoring. Verify with HUD →
Top industries in ZIP 18031
Top 5 sectors by establishment count
Which industries have the most business establishments in ZIP 18031.
- Transportation and warehousing
Transportation and warehousing
46 establishments
- Professional, scientific, and technical services
Professional, scientific, and technical services
28 establishments
- Wholesale trade
Wholesale trade
19 establishments
- Administrative and support and waste management and remediation services 17
Administrative and support and waste management and remediation services
17 establishments
- Manufacturing 16
Manufacturing
16 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 + HUD FMR + FHFA HPI ACS demographics, ZBP business establishments, HUD Fair Market Rents, 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; HUD FMR + 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
Who lives in ZIP 18031?
39.4
Median Age
43.7%
Male
56.3%
Female
20.0%
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?
$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
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?
4,634
Total Housing Units
4,098
Occupied Units
536
Vacant Units
2.81
Avg Household Size
Occupancy Type
$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 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
Related Areas
Frequently Asked Questions
What county is ZIP code 18031 in? ▼
What is the population of ZIP code 18031? ▼
What is the median household income in ZIP 18031? ▼
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What is the demographic makeup of ZIP 18031? ▼
How many businesses are in ZIP code 18031? ▼
What are the main industries in ZIP code 18031? ▼
How have home values changed in ZIP code 18031? ▼
What is the education level in ZIP code 18031? ▼
What is the average commute time in ZIP 18031? ▼
What percentage of residents own vs. rent in ZIP 18031? ▼
What is the poverty rate in ZIP code 18031? ▼
ZIP Code Research Guides
Official Data Resources for Breinigsville, PA
Verify and explore additional data for this area using these official government sources.
Source: U.S. Census Bureau, ACS 5-Year Estimates (2023). Business data: Source: Census ZIP Code Business Patterns (ZBP) 2023. Home value trends: Source: FHFA House Price Index (HPI), Five-Digit ZIP Codes.
PlainZIP is not affiliated with the U.S. Census Bureau or any government agency.
Read our methodology , how this data is sourced, computed, and verified.