| Index | Spencer | Iowa | National |
| Income per capita | $43,125 | $42,672 | $44,883 |
| Median household income | $68,078 | $81,387 | $81,333 |
| Median income owner occupied | $96,927 | $98,724 | $106,172 |
| Median income renter occupied | $34,492 | $45,890 | $52,080 |
| Median earnings male | $56,946 | $54,047 | $54,343 |
| Median earnings female | $41,060 | $36,462 | $38,439 |
| Unemployment rate | 3.8% | 3.2% | 4.9% |
| Poverty level | 12.3% | 12.3% | 15.1% |

| Labour Type | Male | Female |
| Construction industry | 10.6% | 10.6% |
| Manufacturing sector | 12.2% | 12.2% |
| Financial & insurance services | 3.1% | 3.1% |
| Wholesale & retail services | 24.2% | 24.2% |
| Public administration | 2.0% | 2.0% |
| Transportation, warehousing & utilities | 8.8% | 8.8% |
| Education, health & social services | 18.5% | 18.5% |
| Other | 17.7% | 17.7% |
| City | Population | Household Income | National Avg. |
| Fostoria, IA | 186 | $112,508 | 38.3% |
| West Okoboji, IA | 356 | $106,784 | 31.3% |
| Dickens, IA | 210 | $90,325 | 11.1% |
| Webb, IA | 186 | $85,118 | 4.7% |
| Milford, IA | 3,086 | $80,026 | 1.6% |
| Spencer, IA | 11,331 | $68,078 | 16.3% |
| City | Population | Household Income | National Avg. |
| Morgan City, LA | 11,332 | $60,117 | 26.1% |
| Franklin Lakes, NJ | 11,324 | $269,878 | 231.8% |
| Woodmere, LA | 11,322 | $74,998 | 7.8% |
| Waimea, HI | 11,340 | $142,934 | 75.7% |
| Clearwater County, AB | 11,321 | n/a | |
| Spencer, IA | 11,331 | $68,078 | 16.3% |