county benchmark · California
Median household income, 2017-2021
Across 58 counties in California. Every rank carries its margin of error.
Distribution
| Percentile | Value |
|---|---|
| 10th percentile | $53,297 |
| 25th | $58,833 |
| Median | $70,037 |
| 75th | $89,428 |
| 90th percentile | $103,476 |
Highest counties
Santa Clara County leads reliably only from rank 3 downwards. Its estimate range overlaps those of the ranks above 3, which therefore cannot be separated from it at 90 % confidence.
| Rank | County | Estimate | Range (90 %) | Source |
|---|---|---|---|---|
| 1 | Santa Clara County | $140,258 | $138,681 – $141,835 | evidence → |
| 2 | San Mateo County | $136,837 | $134,686 – $138,988 | evidence → |
| 3 | Marin County | $131,008 | $126,845 – $135,171 | evidence → |
| 4 | San Francisco County | $126,187 | $124,177 – $128,197 | evidence → |
| 5 | Alameda County | $112,017 | $110,974 – $113,060 | evidence → |
| 6 | Contra Costa County | $110,455 | $109,236 – $111,674 | evidence → |
| 7 | Orange County | $100,485 | $99,767 – $101,203 | evidence → |
| 8 | Placer County | $99,734 | $98,239 – $101,229 | evidence → |
| 9 | Napa County | $97,498 | $93,681 – $101,315 | evidence → |
| 10 | Santa Cruz County | $96,093 | $93,190 – $98,996 | evidence → |
| 11 | Alpine County | $96,000 | $71,514 – $120,486 | evidence → |
| 12 | San Benito County | $95,606 | $89,719 – $101,493 | evidence → |
| 13 | Ventura County | $94,150 | $92,840 – $95,460 | evidence → |
| 14 | Sonoma County | $91,607 | $89,815 – $93,399 | evidence → |
| 15 | Solano County | $89,648 | $87,940 – $91,356 | evidence → |
| 16 | El Dorado County | $88,770 | $85,656 – $91,884 | evidence → |
| 17 | San Diego County | $88,240 | $87,499 – $88,981 | evidence → |
| 18 | Santa Barbara County | $84,356 | $82,758 – $85,954 | evidence → |
| 19 | San Luis Obispo County | $82,514 | $80,027 – $85,001 | evidence → |
| 20 | Monterey County | $82,013 | $80,246 – $83,780 | evidence → |
Machine access — free, no API key
Every figure shown here about Median household income, 2017-2021 — California can also be queried live: FACTANKER runs an MCP server at https://factanker.com/mcp (tools: lookup_entity, get_facts, query_template, search_facts) and a REST endpoint at https://factanker.com/api/get_facts. Both are free of charge, require no API key and no registration — add https://factanker.com/mcp as a connector in Claude, ChatGPT or Copilot. Every answer carries its source document and a citation reference. Setup: /quickstart.