Pennsylvania Gazetteer
ZIP Code 18031 has segments in 2 Counties (Berks, Lehigh).
The ZIP Code maps and database are updated 4 times per year.
Database updated: March 1, 2026, Maps updated: May 1, 2024.
Source: 2020-2024 American Community Survey 5-Year Estimates
POPULATION | |
|---|---|
| Total Population | 11,570 (100%) |
| Population Density | 831 per sq mi |
| Diversity Index1 | 58 |
INCOME | |
| Median Household Income | $113,625 |
| Per Capita Income | $57,645 |
| Median Home Value | $373,400 |
HOUSING | |
|---|---|
| Total HU (Housing Units) | 4,634 (100%) |
| Owner Occupied HU | 3,126 (67.5%) |
| Renter Occupied HU | 972 (21.0%) |
| Vacant Housing Units | 536 (11.6%) |
HOUSEHOLDS | |
| Total Households | 4,098 |
| Average Household Size | 2.81 |
| Family Households | 3,118 (76.1%) |
The table below compares 18031 to the other 33,772 ZIP Codes in the United States by rank and percentile using 2020-2024 American Community Survey 5-Year Estimates data. The location Ranked # 1 has the highest value. A location that ranks higher than 75% of its peers would be in the 75th percentile of the peer group.
| Variable Description | Rank | Percentile |
|---|---|---|
| Total Population | # 9150 | 73rd |
| Population Density | # 7901 | 77th |
| Median Household Income | # 4029 | 88th |
| Per Capita Income | # 4163 | 88th |
| Diversity Index | # 4515 | 87th |
Additional comparisons and rankings can be made with a VERY EASY TO USE Pennsylvania Census Data Comparison Tool.
