St. Clair County, IL

County in Illinois, Midwest · ranked on 11 metrics

St. Clair County, IL is a county in Illinois with a population of 250,041 (297th of 3,094). It ranks best for Median Income (925th of 2,000).

Population
250K
297th highest of 3,094
Density
380.0
366th highest of 3,094
Growth since 2020
-2.73%
2,520th highest of 3,094
Area
658
1,405th highest of 3,094
Region
Midwest
Illinois

Strengths and weak spotsPercentileWhere a place sits among all places, from 0 to 100. 100 is the best, 50 is the middle, 0 is the worst.More in the glossary →

Percentile on 1 metric that ranks at least 774 places, given whether higher or lower is better. 6 metrics from top lists such as “the most violent” are left out, since they rank only one end of the scale.

Totals that track populationCounts like “number of burglaries” that mostly reflect how many people live somewhere, so big places rank high or low regardless.More in the glossary →

Best at

Highest percentiles, given whether higher or lower is better

  1. Poorest Counties
    925th of 2,000

Worst at

Lowest percentiles, given whether higher or lower is better

Not enough widely ranked metrics for this place.

Profile by category

No category has three or more widely ranked metrics for this place.

Notable facts

Where it ranks first or last among US counties

Never first or last on a widely ranked metric.

Where it is

Shaded by population; select a place to open it

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Quick answers

What is the population of St. Clair County, IL?
St. Clair County, IL has a population of 250,041, 297th among 3,094 US counties.
What does St. Clair County, IL rank best at?
Among US counties, St. Clair County, IL ranks best for Median Income (925th of 2,000).
How many statistics does Rankodex have for St. Clair County, IL?
Rankodex ranks St. Clair County, IL on 11 statistics compared with other US counties, compiled from World Population Review and the sources it cites.

Every metric

11 metrics with a value for this place, in 5 topics