Comparison to Surrounding Areas
The median household income ($80,469) for 99135 is less than the median household income for 99123 ($87,841) and Hartline town ($88,125). But it's more than 98832 ($31,964), 98860 ($62,500), 99103 ($53,125), 99115 ($62,708), and Grant County ($73,267).
| 99135 | $80,469 |
| Hartline town | $88,125 |
| Grant County | $73,267 |
Get Median Household Income for all Zip Codes in Washington.
The average household income ($78,884) for 99135 is less than the average household income for 99123 ($106,588), Grant County ($92,003), and Hartline town ($82,722). But it's more than 98832 ($52,284), 98860 ($66,877), 99103 ($66,376), and 99115 ($67,618).
| 99135 | $78,884 |
| Hartline town | $82,722 |
| Grant County | $92,003 |
Get Average Household Income for all Zip Codes in Washington.
The per-capita income for 99135 is $33,187. The per capita income ($33,187) for 99135 is less than the per capita income for 99123 ($47,073), Grant County ($33,242), and Hartline town ($46,274). But it's more than 98832 ($32,529), 98860 ($30,275), 99103 ($26,826), and 99115 ($28,432).
| 99135 | $33,187 |
| Hartline town | $46,274 |
| Grant County | $33,242 |
Get Per-Capita Income for all Zip Codes in Washington.
1.8% of households make over $200,000 a year. The percent high income households (1.8%) for 99135 is less than the percent high income households for 99123 (10.6%), Grant County (7.9%), and Hartline town (2.9%). But it's more than 98832 (0.0%), 98860 (0.0%), 99103 (0.0%), and 99115 (0.0%).
| 99135 | 1.8% |
| Hartline town | 2.9% |
| Grant County | 7.9% |
Get High Income Households for all Zip Codes in Washington.
| under 25 years | 25 to 44 years | 45 to 64 years | 65 years and over | |
|---|---|---|---|---|
| 99135 | $-1 | $-1 | $117,841 | $90,563 |
| Hartline town | $-1 | $89,375 | $115,500 | $-1 |
| Grant County | $50,775 | $80,399 | $91,476 | $46,220 |
Get Median Household Income by Age of Householder for all Zip Codes in Washington.
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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 99135 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+ | |||||
| 99135 | +/-$48,363 | +/-$14,096 | +/-$10,174 | +/-2.4% | +/-$-1 | +/-$-1 | +/-$27,373 | +/-$72,461 |
| Hartline town | +/-$25,541 | +/-$13,157 | +/-$11,633 | +/-3.8% | +/-$-1 | +/-$42,709 | +/-$63,261 | +/-$-1 |
| Grant County | +/-$3,441 | +/-$3,969 | +/-$1,436 | +/-1.1% | +/-$11,979 | +/-$6,171 | +/-$6,309 | +/-$5,003 |