Comparison to Surrounding Areas
The median household income ($117,656) for 15321 is less than the median household income for 15057 ($120,821) and South Fayette township ($124,112). But it's more than 15017 ($86,937), 15317 ($108,044), Allegheny County ($78,548), Washington County ($78,958), and Cecil township ($105,303).
| 15321 | $117,656 |
| South Fayette township | $124,112 |
| Cecil township | $105,303 |
| Allegheny County | $78,548 |
| Washington County | $78,958 |
Get Median Household Income for all Zip Codes in Pennsylvania.
The average household income ($142,029) for 15321 is less than the average household income for South Fayette township ($154,159). But it's more than 15017 ($116,300), 15057 ($139,724), 15317 ($137,399), Allegheny County ($110,063), Washington County ($105,512), and Cecil township ($124,942).
| 15321 | $142,029 |
| South Fayette township | $154,159 |
| Cecil township | $124,942 |
| Allegheny County | $110,063 |
| Washington County | $105,512 |
Get Average Household Income for all Zip Codes in Pennsylvania.
The per-capita income for 15321 is $54,240. The per capita income ($54,240) for 15321 is less than the per capita income for 15317 ($56,076) and South Fayette township ($58,336). But it's more than 15017 ($53,307), 15057 ($52,321), Allegheny County ($49,588), Washington County ($45,022), and Cecil township ($51,533).
| 15321 | $54,240 |
| South Fayette township | $58,336 |
| Cecil township | $51,533 |
| Allegheny County | $49,588 |
| Washington County | $45,022 |
Get Per-Capita Income for all Zip Codes in Pennsylvania.
13.9% of households make over $200,000 a year. The percent high income households (13.9%) for 15321 is less than the percent high income households for 15057 (18.9%), 15317 (18.7%), and South Fayette township (21.7%). But it's more than 15017 (12.1%), Allegheny County (12.7%), Washington County (11.2%), and Cecil township (11.7%).
| 15321 | 13.9% |
| South Fayette township | 21.7% |
| Cecil township | 11.7% |
| Allegheny County | 12.7% |
| Washington County | 11.2% |
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 | |
|---|---|---|---|---|
| 15321 | $145,122 | $172,569 | $89,412 | $69,444 |
| South Fayette township | $75,625 | $146,966 | $144,971 | $71,451 |
| Cecil township | $-1 | $113,873 | $122,778 | $81,818 |
| Allegheny County | $37,955 | $93,493 | $98,026 | $54,654 |
| Washington County | $50,837 | $97,677 | $96,257 | $55,388 |
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 15321 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+ | |||||
| 15321 | +/-$43,489 | +/-$31,880 | +/-$13,946 | +/-8.8% | +/-$124,199 | +/-$24,390 | +/-$47,788 | +/-$30,010 |
| South Fayette township | +/-$8,322 | +/-$9,190 | +/-$3,880 | +/-3.3% | +/-$51,254 | +/-$18,171 | +/-$14,748 | +/-$7,582 |
| Cecil township | +/-$6,103 | +/-$9,670 | +/-$3,745 | +/-2.6% | +/-$-1 | +/-$10,858 | +/-$17,509 | +/-$14,442 |
| Allegheny County | +/-$994 | +/-$1,192 | +/-$525 | +/-0.3% | +/-$2,291 | +/-$1,768 | +/-$1,936 | +/-$917 |
| Washington County | +/-$2,272 | +/-$2,227 | +/-$939 | +/-0.8% | +/-$8,892 | +/-$4,495 | +/-$6,252 | +/-$2,360 |