Belfast is a city located in New York. Belfast has a 2020 population of 1,564. Belfast is currently declining at a rate of -0.70% annually and its population has decreased by -6.29% since the most recent census, which recorded a population of 1,669 in 2010. Belfast reached it's highest population of 1,669 in 2010.
The average household income in Belfast is $54,811 with a poverty rate of 17.80%. The median rental costs in recent years comes to $625 per month, and the median house value is $75,700. The median age in Belfast is 31 years, 30.3 years for males, and 35.6 years for females. For every 100 females there are 103.4 males.