In 2021, Spencer, IA had a population of 16.4k people with a median age of 41 and a median household income of $52,307. Between 2020 and 2021 the population of Spencer, IA grew from 16,138 to 16,410, a 1.69% increase and its median household income grew from $51,259 to $52,307, a 2.04% increase.
The 5 largest ethnic groups in Spencer, IA are White (Non-Hispanic) (92.7%), White (Hispanic) (2.36%), Two+ (Non-Hispanic) (2.05%), Two+ (Hispanic) (1.07%), and Other (Hispanic) (0.658%).
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.
99.4% of the residents in Spencer, IA are U.S. citizens.
In 2021, the median property value in Spencer, IA was $134,000, and the homeownership rate was 69.8%.
Most people in Spencer, IA drove alone to work, and the average commute time was 19.1 minutes. The average car ownership in Spencer, IA was 2 cars per household.
Spencer, IA borders Spirit Lake, IA and Storm Lake, IA.