Comparison to Surrounding Areas
The median household income ($-1) for 18331 is less than 18058 ($73,041), 18322 ($121,421), 18330 ($93,733), Monroe County ($83,565), Chestnuthill township ($89,842), and Polk township ($80,625). And it's the same as 18333 ($-1).
| 18331 | $-1 |
| Chestnuthill township | $89,842 |
| Polk township | $80,625 |
| Monroe County | $83,565 |
Get Median Household Income for all Zip Codes in Pennsylvania.
The average household income ($81,614) for 18331 is less than the average household income for 18058 ($97,938), 18322 ($125,305), 18330 ($113,364), Monroe County ($102,906), Chestnuthill township ($110,166), and Polk township ($107,458). But it's more than 18333 ($-1).
| 18331 | $81,614 |
| Chestnuthill township | $110,166 |
| Polk township | $107,458 |
| Monroe County | $102,906 |
Get Average Household Income for all Zip Codes in Pennsylvania.
The per-capita income for 18331 is $46,824. The per capita income ($46,824) for 18331 is more than 18058 ($38,993), 18322 ($42,526), 18330 ($39,053), 18333 ($20,003), Monroe County ($38,861), Chestnuthill township ($39,305), and Polk township ($40,874).
| 18331 | $46,824 |
| Chestnuthill township | $39,305 |
| Polk township | $40,874 |
| Monroe County | $38,861 |
Get Per-Capita Income for all Zip Codes in Pennsylvania.
17.8% of households make over $200,000 a year. The percent high income households (17.8%) for 18331 is more than 18058 (7.7%), 18322 (13.9%), 18330 (14.7%), 18333 (0.0%), Monroe County (10.0%), Chestnuthill township (13.8%), and Polk township (10.7%).
| 18331 | 17.8% |
| Chestnuthill township | 13.8% |
| Polk township | 10.7% |
| Monroe County | 10.0% |
Get High Income Households for all Zip Codes in Pennsylvania.
| under 25 years | 25 to 44 years | 45 to 64 years | 65 years and over | |
|---|---|---|---|---|
| 18331 | $-1 | $-1 | $250,001 | $-1 |
| Chestnuthill township | $-1 | $87,448 | $110,909 | $54,923 |
| Polk township | $-1 | $87,474 | $110,556 | $45,192 |
| Monroe County | $57,500 | $90,016 | $102,974 | $56,087 |
Get Median Household Income by Age of Householder for all Zip Codes in Pennsylvania.
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All income statistics above are the most current, comparable income statistics available from the US Census Bureau and are from the American Community Survey 2024 5-year estimates. You can find this information and other demographics for 18331 on the US Census Bureau’s website. These values are in 2024 inflation-adjusted dollars and were downloaded on 29 January 2026.
Margins of error for the income data are:
| Median Household Income | Average Household Income | Per Capita Income | High Income Households | Median Household Income by Age of Householder | ||||
|---|---|---|---|---|---|---|---|---|
| under 25 | 25 to 44 | 45 to 64 | 65+ | |||||
| 18331 | +/-$-1 | +/-$53,323 | +/-$26,516 | +/-23.1% | +/-$-1 | +/-$-1 | +/-$-1 | +/-$-1 |
| Chestnuthill township | +/-$9,670 | +/-$8,960 | +/-$3,267 | +/-3.2% | +/-$-1 | +/-$24,148 | +/-$24,679 | +/-$15,879 |
| Polk township | +/-$12,801 | +/-$18,820 | +/-$7,560 | +/-4.9% | +/-$-1 | +/-$35,819 | +/-$30,854 | +/-$12,459 |
| Monroe County | +/-$2,142 | +/-$3,250 | +/-$1,193 | +/-1.1% | +/-$13,911 | +/-$4,616 | +/-$2,525 | +/-$4,136 |