| Estimates of Resident Population by Municipality: Middlesex County, 2000-2005 | |||||||||||
| FIPS | FIPS | Census 2000 count | Estimates as of July 1, | ||||||||
| County | MCD | County/Municipality | Original | Corrected | 2000 | 2001 | 2002 | 2003 | 2004 | 2005 | |
| 023 | 00000 | Middlesex County | 750,162 | 750,162 | 753,076 | 761,957 | 770,042 | 777,646 | 783,665 | 789,516 | |
| 023 | 10750 | Carteret borough | 20,709 | 20,703 | 20,849 | 21,357 | 21,438 | 21,493 | 21,481 | 21,460 | |
| 023 | 15550 | Cranbury township | 3,227 | 3,231 | 3,246 | 3,292 | 3,343 | 3,428 | 3,720 | 3,947 | |
| 023 | 18490 | Dunellen borough | 6,823 | 6,823 | 6,835 | 6,859 | 6,895 | 6,975 | 6,982 | 6,994 | |
| 023 | 19000 | East Brunswick township | 46,756 | 46,756 | 46,908 | 47,336 | 47,759 | 48,163 | 48,226 | 48,256 | |
| 023 | 20230 | Edison township | 97,687 | 97,591 | 97,839 | 98,462 | 99,143 | 99,650 | 99,953 | 100,499 | |
| 023 | 30840 | Helmetta borough | 1,825 | 1,824 | 1,836 | 1,875 | 1,893 | 1,956 | 2,019 | 2,050 | |
| 023 | 31470 | Highland Park borough | 13,999 | 13,999 | 14,023 | 14,064 | 14,118 | 14,154 | 14,145 | 14,268 | |
| 023 | 34890 | Jamesburg borough | 6,025 | 6,025 | 6,070 | 6,230 | 6,348 | 6,453 | 6,512 | 6,521 | |
| 023 | 45690 | Metuchen borough | 12,840 | 12,840 | 12,896 | 13,074 | 13,135 | 13,220 | 13,310 | 13,383 | |
| 023 | 45900 | Middlesex borough | 13,717 | 13,717 | 13,744 | 13,801 | 13,865 | 13,919 | 13,941 | 13,938 | |
| 023 | 46620 | Milltown borough | 7,000 | 7,000 | 7,019 | 7,070 | 7,115 | 7,138 | 7,135 | 7,130 | |
| 023 | 47280 | Monroe township | 27,999 | 28,005 | 28,279 | 29,276 | 30,159 | 31,446 | 32,568 | 34,007 | |
| 023 | 51210 | New Brunswick city | 48,573 | 48,238 | 48,337 | 48,572 | 48,750 | 49,351 | 49,576 | 50,156 | |
| 023 | 52560 | North Brunswick township | 36,287 | 36,642 | 36,860 | 37,600 | 38,207 | 38,584 | 39,156 | 39,673 | |
| 023 | 54705 | Old Bridge township | 60,456 | 60,456 | 60,724 | 61,570 | 62,635 | 63,427 | 64,032 | 64,854 | |
| 023 | 58200 | Perth Amboy city | 47,303 | 47,303 | 47,386 | 47,538 | 47,790 | 48,228 | 48,733 | 48,797 | |
| 023 | 59010 | Piscataway township | 50,482 | 50,558 | 50,686 | 51,019 | 51,408 | 51,874 | 52,321 | 52,694 | |
| 023 | 59280 | Plainsboro township | 20,215 | 20,211 | 20,323 | 20,696 | 20,876 | 21,019 | 21,256 | 21,364 | |
| 023 | 65790 | Sayreville borough | 40,377 | 40,377 | 40,537 | 41,025 | 41,475 | 41,893 | 42,584 | 43,017 | |
| 023 | 68550 | South Amboy city | 7,913 | 7,913 | 7,926 | 7,946 | 7,973 | 7,995 | 7,993 | 7,975 | |
| 023 | 68790 | South Brunswick township | 37,734 | 37,734 | 38,019 | 39,020 | 39,611 | 40,038 | 40,242 | 40,595 | |
| 023 | 69390 | South Plainfield borough | 21,810 | 21,810 | 21,871 | 22,031 | 22,714 | 22,840 | 22,991 | 23,064 | |
| 023 | 69420 | South River borough | 15,322 | 15,322 | 15,397 | 15,639 | 15,709 | 15,964 | 15,995 | 16,060 | |
| 023 | 69810 | Spotswood borough | 7,880 | 7,881 | 7,903 | 7,960 | 8,075 | 8,156 | 8,201 | 8,237 | |
| 023 | 82000 | Woodbridge township | 97,203 | 97,203 | 97,563 | 98,645 | 99,608 | 100,282 | 100,593 | 100,577 | |