Middlesex County, New Jersey
Middlesex County profile, demographic data, and geographic information.
Cities & Towns in Middlesex County
Constituent municipalities and census communities located within Middlesex County.
| City / Town Name | Classification | Census GEOID | Land Area |
|---|---|---|---|
| Avenel CDP | CDP | 3402350 | 3.40 sq mi |
| Brownville CDP | CDP | 3408492 | 1.07 sq mi |
| Carteret borough | Borough | 3410750 | 4.39 sq mi |
| Clearbrook CDP | CDP | 3413395 | 0.76 sq mi |
| Colonia CDP | CDP | 3414380 | 4.03 sq mi |
| Concordia CDP | CDP | 3414758 | 0.77 sq mi |
| Cranbury CDP | CDP | 3415520 | 1.22 sq mi |
| Dayton CDP | CDP | 3416630 | 2.41 sq mi |
| Deans CDP | CDP | 3416720 | 1.12 sq mi |
| Dunellen borough | Borough | 3418490 | 1.06 sq mi |
| Encore at Monroe CDP | CDP | 3421473 | 0.19 sq mi |
| Fords CDP | CDP | 3424030 | 1.89 sq mi |
| Forsgate CDP | CDP | 3424285 | 0.88 sq mi |
| Heathcote CDP | CDP | 3430738 | 3.13 sq mi |
| Helmetta borough | Borough | 3430840 | 0.83 sq mi |
| Highland Park borough | Borough | 3431470 | 1.82 sq mi |
| Hopelawn CDP | CDP | 3433090 | 0.44 sq mi |
| Iselin CDP | CDP | 3434470 | 3.15 sq mi |
| Jamesburg borough | Borough | 3434890 | 0.88 sq mi |
| Keasbey CDP | CDP | 3436570 | 1.46 sq mi |
| Kendall Park CDP | CDP | 3436660 | 3.78 sq mi |
| Laurence Harbor CDP | CDP | 3439360 | 2.95 sq mi |
| Madison Park CDP | CDP | 3442540 | 1.82 sq mi |
| Menlo Park Terrace CDP | CDP | 3445450 | 0.37 sq mi |
| Metuchen borough | Borough | 3445690 | 2.84 sq mi |
| Middlesex borough | Borough | 3445900 | 3.49 sq mi |
| Milltown borough | Borough | 3446620 | 1.55 sq mi |
| Monmouth Junction CDP | CDP | 3447190 | 4.38 sq mi |
| Monroe Manor CDP | CDP | 3447380 | 0.28 sq mi |
| New Brunswick city | City | 3451210 | 5.23 sq mi |
| Old Bridge CDP | CDP | 3454690 | 7.87 sq mi |
| Perth Amboy city | City | 3458200 | 4.66 sq mi |
| Plainsboro Center CDP | CDP | 3459285 | 0.74 sq mi |
| Port Reading CDP | CDP | 3460540 | 1.98 sq mi |
| Princeton Meadows CDP | CDP | 3460975 | 2.55 sq mi |
| Regency at Monroe CDP | CDP | 3462585 | 0.73 sq mi |
| Renaissance at Monroe CDP | CDP | 3462605 | 0.17 sq mi |
| Rossmoor CDP | CDP | 3464865 | 0.67 sq mi |
| Rutgers University-Busch Campus CDP | CDP | 3465249 | 1.22 sq mi |
| Rutgers University-Livingston Campus CDP | CDP | 3465260 | 1.34 sq mi |
| Sayreville borough | Borough | 3465790 | 15.89 sq mi |
| Sewaren CDP | CDP | 3466720 | 1.22 sq mi |
| South Amboy city | City | 3468550 | 1.54 sq mi |
| South Plainfield borough | Borough | 3469390 | 8.30 sq mi |
| South River borough | Borough | 3469420 | 2.78 sq mi |
| Spotswood borough | Borough | 3469810 | 2.31 sq mi |
| Stonebridge CDP | CDP | 3470987 | 0.46 sq mi |
| The Ponds CDP | CDP | 3472726 | 0.22 sq mi |
| Whittingham CDP | CDP | 3481042 | 0.69 sq mi |
| Woodbridge CDP | CDP | 3481950 | 4.60 sq mi |