US Census Data

ZIP Code 18031

ZIP Code Tabulation Area in Lehigh County, Pennsylvania.

Population
12,031
+13.3%’19–’23
Median household income
$107,807
+16.3%’19–’23
Median home value
$358,900
+15.5%’19–’23

ZIP Code 18031 (Lehigh County, Pennsylvania) is home to about 12,031 residents. Its median household income of $107,807 runs above the Lehigh County figure of $77,493.

From 2019 to 2023, ZIP Code 18031's population grew 13.3% from 10,622 to 12,031, while its median gross rent rose 22.2% from $1,543 to $1,886.

The median resident is 39.5 years old. The largest age group is 5 to 17, 21.3% of residents.

Demographics

ACS 2019–2023
Population
12,031
Median age
39.5 yrs
Median household income
$107,807
Median home value
$358,900
Median gross rent
$1,886
Housing units
4,569
Homeownership rate
75.9%
Bachelor's degree or higher
50.3%
Unemployment rate
3.2%

Trends

ACS 5-year · 2019–2023
Population
10,62212,031
Median household income
$92,663$107,807
Median home value
$310,800$358,900
Median gross rent
$1,543$1,886
YearPopulationMedian household incomeMedian home valueMedian gross rent
201910,622$92,663$310,800$1,543
202011,354$78,975$295,900$1,586
202111,882$91,006$294,500$1,577
202212,337$94,896$343,800$1,724
202312,031$107,807$358,900$1,886

Each year is a US Census Bureau ACS 5-year estimate ending that year.

Age distribution

CountShare
Under 56485.4%
5 to 172,56321.3%
18 to 245764.8%
25 to 341,34611.2%
35 to 442,07117.2%
45 to 541,62213.5%
55 to 641,62613.5%
65 to 749497.9%
75 and over6305.2%

Race & ethnicity

CountShare
White (non-Hispanic)7,32360.9%
Black or African American5884.9%
American Indian & Alaska Native00.0%
Asian1,50112.5%
Native Hawaiian & Pacific Islander00.0%
Some other race70.1%
Two or more races3583.0%
Hispanic or Latino (any race)2,25418.7%

Educational attainment (age 25+)

CountShare
No high school diploma1972.4%
High school graduate1,92823.4%
Some college or associate's1,97524.0%
Bachelor's degree2,49630.3%
Graduate or professional degree1,64820.0%

Commute to work

Mean travel time to work
25 min

How workers get to work

CountShare
Drove alone4,30370.9%
Carpooled931.5%
Public transit360.6%
Walked340.6%
Bicycle00.0%
Worked from home1,46224.1%
Other means1382.3%

Travel time

CountShare
Under 15 min1,27527.7%
15 to 29 min1,76838.4%
30 to 44 min1,17825.6%
45 to 59 min801.7%
60+ min3036.6%

Households

Average household size
2.88
Poverty rate
4.3% (517 of 11,972)
CountShare
Family households3,31079.8%
Nonfamily households84020.2%

Housing

Median year structure built
2002

Occupancy

CountShare
Occupied4,15090.8%
Vacant4199.2%

Tenure (of occupied units)

CountShare
Owner-occupied3,15075.9%
Renter-occupied1,00024.1%

Units in structure

CountShare
1-unit, detached2,04244.7%
1-unit, attached1,51233.1%
2 to 4 units10.0%
5 to 19 units3948.6%
20 or more units2094.6%
Mobile home & other4119.0%

Geography

ZCTA
18031
Land area
14 sq mi
Water area
0.03 sq mi
Center point
40.5596, -75.6489

Counties this ZIP covers

2

Compare with nearby ZIP codes

6

National ZIP rankings

21

Nearby ZIP codes

9