Lyndon is a city located in Kansas. With a 2020 population of 1,014, it is the 191st largest city in Kansas and the 10239th largest city in the United States. Lyndon is currently declining at a rate of -0.29% annually and its population has decreased by -3.61% since the most recent census, which recorded a population of 1,052 in 2010. Lyndon reached it's highest population of 1,056 in 2010. Spanning over 1 miles, Lyndon has a population density of 1,137 people per square mile.
The average household income in Lyndon is $61,766 with a poverty rate of 8.01%. The median rental costs in recent years comes to $905 per month, and the median house value is $87,700. The median age in Lyndon is 34.5 years, 32 years for males, and 35.7 years for females. For every 100 females there are 87.3 males.