Elgin is a city located in Fayette County Iowa. With a 2020 population of 638, it is the 392nd largest city in Iowa and the 12258th largest city in the United States . Elgin is currently growing at a rate of 0.31% annually but its population has decreased by -6.59% since the most recent census, which recorded a population of 683 in 2010. Elgin reached it's highest population of in . Spanning over 1 miles, Elgin has a population density of 964 people per square mile.
The average household income in Elgin is $59,774 with a poverty rate of 9.87%. The median rental costs in recent years comes to $518 per month, and the median house value is $79,500. The median age in Elgin is 40.5 years, 39.9 years for males, and 44.3 years for females.