| Index | St. John | Kansas | National |
| Income per capita | $20,707 | $27,367 | $28,555 |
| Median household income | $41,776 | $51,872 | $53,482 |
| Median income owner occupied | $48,056 | $65,700 | $68,142 |
| Median income renter occupied | $30,938 | $31,165 | $33,219 |
| Median earnings male | $32,072 | $35,528 | $36,116 |
| Median earnings female | $19,286 | $23,777 | $25,692 |
| Unemployment rate | 2.0% | 4.4% | 5.8% |
| Poverty level | 12.1% | 13.8% | 15.6% |
| Labour Type | Male | Female |
| Construction industry | 9.2% | 1.0% |
| Manufacturing sector | 3.0% | 38.1% |
| Financial & insurance services | 0.9% | 1.0% |
| Wholesale & retail services | 7.4% | 4.5% |
| Public administration | 8.0% | 7.6% |
| Transportation, warehousing & utilities | 4.8% | 0.0% |
| Education, health & social services | 17.6% | 56.4% |
| Other | 49.1% | 28.7% |
| City, State | Population | Household Income | National Avg. |
| Byers, KS | 94 | $65,268 | 22% |
| Hudson, KS | 161 | $60,417 | 13% |
| Macksville, KS | 529 | $45,250 | 15% |
| Stafford, KS | 1,092 | $38,112 | 29% |
| Seward, KS | 55 | $31,250 | 42% |
| St. John, KS | 1,325 | $41,776 | 22% |
| City, State | Population | Household Income | National Avg. |
| Black Rock, NM | 1,325 | $23,607 | 56% |
| Gardner, IL | 1,325 | $68,990 | 29% |
| Elmendorf, TX | 1,325 | $48,000 | 10% |
| Emory, VA | 1,326 | $71,458 | 34% |
| Carrizo Hill, TX | 1,326 | $60,755 | 14% |
| St. John, KS | 1,325 | $41,776 | 22% |