# Cook, Illinois — #3,143 of 3,144 counties

> Liberty Moving composite score 3.20 of 10. FIPS 17031. Population 5,087,072. v4 — beta, 30 October 2026, sourced values.

About 5,087,100 people live in Cook, Illinois. It ranks #3,143 of 3,144 counties for liberty, and #101 of 102 in Illinois. The combined sales tax is 9.25%, higher than in 95% of counties. Property tax takes about 1.73% of a home's value each year, more than in 96% of counties. Local government employs a smaller share of working residents than in 70% of counties. The homicide rate is higher than in 95% of counties. Life expectancy is about 78.4 years, longer than in 78% of counties. Air quality is worse than in almost every other county (a typical day's air quality index is 55), and flood and hurricane risk is higher than in almost every other county. On this site's state scores, Illinois gets 5.58 of 10 for economic freedom, based on the Fraser Institute's ranking, and 0 of 10 for gun rights.

## Scores

| Factor | Level | Score (0–10) | Flag |
|---|---|---|---|
| Fraser Institute state ranking | state | 5.58 |  |
| 2A | state | 0.00 |  |
| Air quality | county | 4.53 |  |
| GOP + LP vote for President | county | 2.81 |  |
| Homicide rate | county | 1.72 |  |
| Sales tax | county | 1.59 |  |
| Property tax | county | 1.35 |  |
| Floods / hurricanes | county | 0.01 |  |
| Life expectancy | county | 8.40 |  |
| Government employees | county | 6.98 |  |
| Single-parent households | county | 2.31 |  |

"est" marks a derived or placeholder value with no published county figure.

## Neighbors

- #2831 Lake, Indiana — https://libertymoving.org/counties/18089.md
- #3028 Lake, Illinois — https://libertymoving.org/counties/17097.md
- #2960 DuPage, Illinois — https://libertymoving.org/counties/17043.md
- #3004 McHenry, Illinois — https://libertymoving.org/counties/17111.md
- #3020 Kane, Illinois — https://libertymoving.org/counties/17089.md
- #3047 Will, Illinois — https://libertymoving.org/counties/17197.md

## Links

- Page: https://libertymoving.org/counties/17031
- Compare: https://libertymoving.org/compare?a=17031
- Methodology: https://libertymoving.org/methodology
- Sources and terms: https://libertymoving.org/privacy