In 2021, Spencer, IA had a population of 11.3k people with a median age of 40.8 and a median household income of $45,313. Between 2020 and 2021 the population of Spencer, IA grew from 11,038 to 11,292, a 2.3% increase and its median household income grew from $45,224 to $45,313, a 0.197% increase.
The 5 largest ethnic groups in Spencer, IA are White (Non-Hispanic) (91.2%), White (Hispanic) (2.67%), Two+ (Non-Hispanic) (2.66%), Two+ (Hispanic) (1.36%), and Asian (Non-Hispanic) (0.717%).
None of the households in Spencer, IA reported speaking a non-English language at home as their primary shared language. This does not consider the potential multi-lingual nature of households, but only the primary self-reported language spoken by all members of the household.
99.3% of the residents in Spencer, IA are U.S. citizens.
In 2021, the median property value in Spencer, IA was $139,100, and the homeownership rate was 64.1%.
Most people in Spencer, IA drove alone to work, and the average commute time was 17.5 minutes. The average car ownership in Spencer, IA was 2 cars per household.