Walker is a city located in Linn County, Iowa. Walker has a 2026 population of 671. Walker is currently growing at a rate of 0.45% annually but its population has decreased by -2.04% since the most recent census, which recorded a population of 685 in 2020.
The median household income in Walker is $82,656 with a poverty rate of 14.24%. The median age in Walker is 36 years: 32.5 years for males, and 43.5 years for females. For every 100 females there are 109.2 males.