Crescent Township is a township in Allegheny County, Pennsylvania, United States, and is part of the Pittsburgh Metro Area. The population was 2,479 at the 2020 census.

|-

! Year

! Republican

! Democratic

! Third parties

|-

| style="text-align:center; |2020

| style="text-align:center; |55% 791

| style="text-align:center; |43% 614

| style="text-align:center; background:honeyDew;"|1% 20

|-

| style="text-align:center; |2016

| style="text-align:center; |55% 720

| style="text-align:center; |44% 529

| style="text-align:center; background:honeyDew;"|4% 54

|-

| style="text-align:center; |2012

| style="text-align:center; |56% 685

| style="text-align:center; |44% 539

| style="text-align:center; background:honeyDew;"|0% 9

|}

Geography

According to the United States Census Bureau, the township has a total area of , of which is land and , or 8.11%, is water.

As of the 2000 census,