Colfax is a city located in Washington. With a 2020 population of 2,804, it is the 149th largest city in Washington and the 6451st largest city in the United States. Colfax is currently declining at a rate of -1.20% annually and its population has decreased by -0.04% since the most recent census, which recorded a population of 2,805 in 2010. Colfax reached it's highest population of 3,057 in 1950. Spanning over 4 miles, Colfax has a population density of 742 people per square mile.
The average household income in Colfax is $63,003 with a poverty rate of 13.16%. The median rental costs in recent years comes to $732 per month, and the median house value is $166,000. The median age in Colfax is 48.1 years, 42.6 years for males, and 52.4 years for females. For every 100 females there are 102.2 males.