| Index | Colby | Wisconsin | National |
| Income per capita | $34,547 | $43,754 | $44,883 |
| Median household income | $72,262 | $81,774 | $81,333 |
| Median income owner occupied | $100,267 | $103,160 | $106,172 |
| Median income renter occupied | $46,288 | $47,125 | $52,080 |
| Median earnings male | $59,838 | $54,326 | $54,343 |
| Median earnings female | $27,382 | $38,113 | $38,439 |
| Unemployment rate | 1.9% | 3.9% | 4.9% |
| Poverty level | 15.9% | 12.7% | 15.1% |

| Labour Type | Male | Female |
| Construction industry | 10.6% | 10.6% |
| Manufacturing sector | 42.4% | 42.4% |
| Financial & insurance services | 0.0% | 0.0% |
| Wholesale & retail services | 7.7% | 7.7% |
| Public administration | 2.8% | 2.8% |
| Transportation, warehousing & utilities | 3.8% | 3.8% |
| Education, health & social services | 6.7% | 6.7% |
| Other | 25.0% | 25.0% |
| City | Population | Household Income | National Avg. |
| Fenwood, WI | 166 | $104,969 | 29.1% |
| Curtiss, WI | 271 | $95,957 | 18.0% |
| Spencer, WI | 1,753 | $85,463 | 5.1% |
| Stratford, WI | 1,510 | $82,168 | 1.0% |
| Stetsonville, WI | 729 | $81,719 | 0.5% |
| Colby, WI | 2,607 | $72,262 | 11.2% |
| City | Population | Household Income | National Avg. |
| Colwyn, PA | 2,607 | $74,111 | 8.9% |
| Marysville, PA | 2,607 | $85,743 | 5.4% |
| Johnston, SC | 2,607 | $47,977 | 41.0% |
| Cannon AFB, NM | 2,606 | $75,005 | 7.8% |
| South Alamo, TX | 2,606 | $40,654 | 50.0% |
| Colby, WI | 2,607 | $72,262 | 11.2% |