| Index | Twain Harte | California | National |
| Income per capita | $77,399 | $45,980 | $44,883 |
| Median household income | $89,583 | $95,535 | $81,333 |
| Median income owner occupied | $109,215 | $130,228 | $106,172 |
| Median income renter occupied | $74,845 | $64,137 | $52,080 |
| Median earnings male | $59,855 | $52,776 | $54,343 |
| Median earnings female | $42,535 | $38,938 | $38,439 |
| Unemployment rate | 3.8% | 6.8% | 4.9% |
| Poverty level | 6.6% | 15.8% | 15.1% |

| Labour Type | Male | Female |
| Construction industry | 12.4% | 12.4% |
| Manufacturing sector | 13.8% | 13.8% |
| Financial & insurance services | 1.8% | 1.8% |
| Wholesale & retail services | 2.8% | 2.8% |
| Public administration | 3.7% | 3.7% |
| Transportation, warehousing & utilities | 10.9% | 10.9% |
| Education, health & social services | 24.3% | 24.3% |
| Other | 30.3% | 30.3% |
| City | Population | Household Income | National Avg. |
| Mi-Wuk Village, CA | 955 | $168,437 | 107.1% |
| Avery, CA | 461 | $167,464 | 105.9% |
| Forest Meadows, CA | 1,372 | $112,745 | 38.6% |
| Soulsbyville, CA | 2,120 | $107,637 | 32.3% |
| Mono Vista, CA | 3,745 | $107,401 | 32.1% |
| Twain Harte, CA | 2,593 | $89,583 | 10.1% |
| City | Population | Household Income | National Avg. |
| Seekaskootch 119, SK | 2,593 | n/a | |
| Whittingham, NJ | 2,592 | $93,742 | 15.3% |
| Sisseton, SD | 2,592 | $57,810 | 28.9% |
| Greater Madawaska, ON | 2,592 | n/a | |
| Honaunau-Napoopoo, HI | 2,594 | $88,447 | 8.7% |
| Twain Harte, CA | 2,593 | $89,583 | 10.1% |