| Index | Knollwood | Texas | National |
| Income per capita | $37,564 | $41,777 | $44,883 |
| Median household income | $56,873 | $80,880 | $81,333 |
| Median income owner occupied | $54,495 | $107,635 | $106,172 |
| Median income renter occupied | $0 | $54,463 | $52,080 |
| Median earnings male | $44,161 | $53,620 | $54,343 |
| Median earnings female | $15,271 | $36,296 | $38,439 |
| Unemployment rate | 11.0% | 4.3% | 4.9% |
| Poverty level | 17.3% | 16.7% | 15.1% |

| Labour Type | Male | Female |
| Construction industry | 7.7% | 7.7% |
| Manufacturing sector | 26.9% | 26.9% |
| Financial & insurance services | 0.0% | 0.0% |
| Wholesale & retail services | 17.9% | 17.9% |
| Public administration | 0.0% | 0.0% |
| Transportation, warehousing & utilities | 7.7% | 7.7% |
| Education, health & social services | 7.7% | 7.7% |
| Other | 32.1% | 32.1% |
| City | Population | Household Income | National Avg. |
| Bells, TX | 1,887 | $104,324 | 28.3% |
| Southmayd, TX | 1,559 | $93,137 | 14.5% |
| Pottsboro, TX | 2,486 | $89,926 | 10.6% |
| Howe, TX | 3,319 | $89,852 | 10.5% |
| Tom Bean, TX | 1,142 | $88,806 | 9.2% |
| Knollwood, TX | 417 | $56,873 | 30.1% |
| City | Population | Household Income | National Avg. |
| Montrose, AR | 417 | $39,299 | 51.7% |
| Point Arena, CA | 417 | $74,092 | 8.9% |
| Wayland, KY | 417 | $36,432 | 55.2% |
| Dumas, MS | 417 | $57,401 | 29.4% |
| Louin, MS | 417 | $47,368 | 41.8% |
| Knollwood, TX | 417 | $56,873 | 30.1% |