Westfield, IL has a population of 742 and is the 17,103rd largest city in the United States. The population density is 741 per sq mi which is 233% higher than the Illinois average and 718% higher than the national average. The median age in Westfield is 42 which is approximately 13% higher than the Illinois average of 37. In Westfield, 63% of the population over 15 years of age are married, 100% speak English and 0% speak Spanish. 73% of Westfield residents were born in Illinois, 26% were born out of state, 0% were born outside of the United States and 1% were foreign born.
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The population density in Westfield is 233% higher than Illinois.
The median age in Westfield is 13% higher than Illinois.
In Westfield 99.46% of the population is White.
In Westfield 0.54% of the population is Black or African American.