<Li> Undisclosed: Canon, Japanese company specializing in imaging products . </Li> <P> Municipalities in Middlesex County (with 2010 Census data for population, housing units and area in square miles) are: Other, unincorporated communities in the county are listed next to their parent municipality . Many of these areas are census - designated places that have been defined by the United States Census Bureau for enumeration purposes within a Township and for which 2010 population data is included in parentheses . </P> <Table> <Tr> <Th> Municipality </Th> <Th> Map key </Th> <Th> Municipal type </Th> <Th> Population </Th> <Th> Housing units </Th> <Th> Total area </Th> <Th> Water area </Th> <Th> Land area </Th> <Th> Pop . density </Th> <Th> Housing density </Th> <Th> Unincorporated communities </Th> </Tr> <Tr> <Td> Carteret </Td> <Td> </Td> <Td> Borough </Td> <Td> 22,844 </Td> <Td> 8,148 </Td> <Td> 5.00 </Td> <Td> 0.58 </Td> <Td> 4.42 </Td> <Td> 5,171.1 </Td> <Td> 1,844.4 </Td> <Td> Chrome West Carteret </Td> </Tr> <Tr> <Td> Cranbury </Td> <Td> 24 </Td> <Td> Township </Td> <Td> 3,857 </Td> <Td> 1,371 </Td> <Td> 13.40 </Td> <Td> 0.15 </Td> <Td> 13.25 </Td> <Td> 291.2 </Td> <Td> 103.5 </Td> <Td> Cranbury CDP (2,181) Cranbury Station Wyckoffs Mills </Td> </Tr> <Tr> <Td> Dunellen </Td> <Td> 14 </Td> <Td> Borough </Td> <Td> 7,227 </Td> <Td> 2,683 </Td> <Td> 1.05 </Td> <Td> 0.00 </Td> <Td> 1.05 </Td> <Td> 6,894.8 </Td> <Td> 2,559.7 </Td> <Td> </Td> </Tr> <Tr> <Td> East Brunswick Township </Td> <Td> 20 </Td> <Td> Township </Td> <Td> 47,512 </Td> <Td> 17,367 </Td> <Td> 22.27 </Td> <Td> 0.57 </Td> <Td> 21.70 </Td> <Td> 2,189.6 </Td> <Td> 800.4 </Td> <Td> Brookview Dunhams Corner East Spotswood Fairview Knolls Farrington Lake Heights Gillilandtown Halls Corner Herberts Jamesburg Park Lawrence Brook Manor Newton Heights Orchard Heights Patricks Corner Paulas Corner Tanners Corner Washington Heights Westons Mills </Td> </Tr> <Tr> <Td> Edison Township </Td> <Td> 17 </Td> <Td> Township </Td> <Td> 99,967 </Td> <Td> 36,302 </Td> <Td> 30.64 </Td> <Td> 0.70 </Td> <Td> 29.94 </Td> <Td> 3,339.0 </Td> <Td> 1,212.5 </Td> <Td> Bonhamtown Clara Barton Greensand Haven Homes Lahiere Lincoln Park Lindenau Martins Landing Menlo Park New Dover New Durham Nixon North Edison Oak Tree Phoenix Potters Pumptown Raritan Manor Sand Hills Stelton Valentine Washington Park </Td> </Tr> <Tr> <Td> Helmetta </Td> <Td> 7 </Td> <Td> Borough </Td> <Td> 2,178 </Td> <Td> 920 </Td> <Td> 0.91 </Td> <Td> 0.06 </Td> <Td> 0.85 </Td> <Td> 2,562.9 </Td> <Td> 1,082.6 </Td> <Td> </Td> </Tr> <Tr> <Td> Highland Park </Td> <Td> 11 </Td> <Td> Borough </Td> <Td> 13,982 </Td> <Td> 6,203 </Td> <Td> 1.82 </Td> <Td> 0.01 </Td> <Td> 1.81 </Td> <Td> 7,728.1 </Td> <Td> 3,428.5 </Td> <Td> </Td> </Tr> <Tr> <Td> Jamesburg </Td> <Td> 8 </Td> <Td> Borough </Td> <Td> 5,915 </Td> <Td> 2,267 </Td> <Td> 0.88 </Td> <Td> 0.01 </Td> <Td> 0.88 </Td> <Td> 6,741.8 </Td> <Td> 2,583.9 </Td> <Td> </Td> </Tr> <Tr> <Td> Metuchen </Td> <Td> 12 </Td> <Td> Borough </Td> <Td> 13,574 </Td> <Td> 5,440 </Td> <Td> 2.77 </Td> <Td> 0.00 </Td> <Td> 2.76 </Td> <Td> 4,910.4 </Td> <Td> 1,967.9 </Td> <Td> Jefferson Park Robinvale </Td> </Tr> <Tr> <Td> Middlesex </Td> <Td> 15 </Td> <Td> Borough </Td> <Td> 13,635 </Td> <Td> 5,148 </Td> <Td> 3.54 </Td> <Td> 0.02 </Td> <Td> 3.52 </Td> <Td> 3,876.2 </Td> <Td> 1,463.5 </Td> <Td> </Td> </Tr> <Tr> <Td> Milltown </Td> <Td> 9 </Td> <Td> Borough </Td> <Td> 6,893 </Td> <Td> 2,698 </Td> <Td> 1.60 </Td> <Td> 0.04 </Td> <Td> 1.55 </Td> <Td> 4,443.0 </Td> <Td> 1,739.0 </Td> <Td> </Td> </Tr> <Tr> <Td> Monroe Township </Td> <Td> 23 </Td> <Td> Township </Td> <Td> 39,132 </Td> <Td> 18,002 </Td> <Td> 42.23 </Td> <Td> 0.26 </Td> <Td> 41.97 </Td> <Td> 932.3 </Td> <Td> 428.9 </Td> <Td> Applegarth Clearbrook Clearbrook Park CDP (2,667) Concordia CDP (3,092) Gravel Hill Half Acre Hoffman Jamesburg Gardens Matchaponix Middlesex Downs Mounts Mills Old Church Outcalt Prospect Plains Rossmoor CDP (2,666) Shore Road Estates Spotswood Manor Texas Tracy Union Valley Whittingham CDP (2,476) Wyckoffs Mills </Td> </Tr> <Tr> <Td> New Brunswick </Td> <Td> 10 </Td> <Td> City </Td> <Td> 55,181 </Td> <Td> 15,053 </Td> <Td> 5.79 </Td> <Td> 0.56 </Td> <Td> 5.23 </Td> <Td> 10,556.4 </Td> <Td> 2,879.7 </Td> <Td> Edgebrook Feaster Park Lincoln Park Raritan Gardens Westons Mills </Td> </Tr> <Tr> <Td> North Brunswick Township </Td> <Td> 21 </Td> <Td> Township </Td> <Td> 40,742 </Td> <Td> 15,045 </Td> <Td> 12.27 </Td> <Td> 0.27 </Td> <Td> 12.00 </Td> <Td> 3,396.2 </Td> <Td> 1,254.1 </Td> <Td> Adams Berdines Corner Black Horse Franklin Park Georges Road Maple Meade Patricks Corner Red Lion </Td> </Tr> <Tr> <Td> Old Bridge Township </Td> <Td> 19 </Td> <Td> Township </Td> <Td> 65,375 </Td> <Td> 24,638 </Td> <Td> 40.78 </Td> <Td> 2.72 </Td> <Td> 38.06 </Td> <Td> 1,717.7 </Td> <Td> 647.3 </Td> <Td> Browntown Brownville CDP (2,383) Brunswick Gardens Cheesequake Cottrell Corners East Spotswood Laurence Harbor CDP (6,536) Madison Park CDP (7,144) Matchaponix Moerls Corner Morristown Old Bridge CDP (23,753) Parlin Redshaw Corner Runyon Sayerwood South South Old Bridge Texas </Td> </Tr> <Tr> <Td> Perth Amboy </Td> <Td> </Td> <Td> City </Td> <Td> 50,814 </Td> <Td> 16,556 </Td> <Td> 5.96 </Td> <Td> 1.26 </Td> <Td> 4.70 </Td> <Td> 10,806.8 </Td> <Td> 3,521.0 </Td> <Td> Barber Harbor Terrace John J Delaney Homes Maurer William Dunlap Homes </Td> </Tr> <Tr> <Td> Piscataway Township </Td> <Td> 16 </Td> <Td> Township </Td> <Td> 56,044 </Td> <Td> 17,777 </Td> <Td> 19.03 </Td> <Td> 0.19 </Td> <Td> 18.83 </Td> <Td> 2,975.5 </Td> <Td> 943.8 </Td> <Td> Fieldville New Market Newtown North Stelton Possumtown Randolphville Raritan Landing Riverview Manor Society Hill CDP (3,829) </Td> </Tr> <Tr> <Td> Plainsboro Township </Td> <Td> 25 </Td> <Td> Township </Td> <Td> 22,999 </Td> <Td> 10,089 </Td> <Td> 12.21 </Td> <Td> 0.42 </Td> <Td> 11.78 </Td> <Td> 1,951.6 </Td> <Td> 856.1 </Td> <Td> <P> Plainsboro Center CDP (2,712) Princeton Meadows CDP (13,834) Schalks Scotts Corner </P> </Td> </Tr> <Tr> <Td> Sayreville </Td> <Td> </Td> <Td> Borough </Td> <Td> 42,704 </Td> <Td> 16,393 </Td> <Td> 18.70 </Td> <Td> 2.86 </Td> <Td> 15.84 </Td> <Td> 2,695.7 </Td> <Td> 1,034.8 </Td> <Td> Crossmans Ernston Gillespie Laurel Park MacArthur Manor Melrose Morgan Morgan Heights Parlin Phoenix Runyon Sayre Woods Sayreville Junction Sayreville Station </Td> </Tr> <Tr> <Td> South Amboy </Td> <Td> </Td> <Td> City </Td> <Td> 8,631 </Td> <Td> 3,576 </Td> <Td> 2.69 </Td> <Td> 1.15 </Td> <Td> 1.55 </Td> <Td> 5,577.1 </Td> <Td> 2,310.7 </Td> <Td> Mechanicsville Thomas J Dohany Homes </Td> </Tr> <Tr> <Td> South Brunswick Township </Td> <Td> 22 </Td> <Td> Township </Td> <Td> 43,417 </Td> <Td> 15,708 </Td> <Td> 41.04 </Td> <Td> 0.39 </Td> <Td> 40.65 </Td> <Td> 1,068.1 </Td> <Td> 386.4 </Td> <Td> Cottageville Dayton CDP (7,063) Deans Franklin Park Fresh Ponds Heathcote CDP (5,821) Kendall Park CDP (9,339) Kingston CDP (1,222) Little Rocky Hill Monmouth Junction CDP (2,887) Sand Hills South Brunswick Terrace </Td> </Tr> <Tr> <Td> South Plainfield </Td> <Td> 13 </Td> <Td> Borough </Td> <Td> 23,385 </Td> <Td> 8,093 </Td> <Td> 8.36 </Td> <Td> 0.03 </Td> <Td> 8.33 </Td> <Td> 2,808.5 </Td> <Td> 971.9 </Td> <Td> Avon Park Samptown </Td> </Tr> <Tr> <Td> South River </Td> <Td> 5 </Td> <Td> Borough </Td> <Td> 16,008 </Td> <Td> 5,957 </Td> <Td> 2.92 </Td> <Td> 0.15 </Td> <Td> 2.77 </Td> <Td> 5,781.4 </Td> <Td> 2,151.4 </Td> <Td> Newton Heights </Td> </Tr> <Tr> <Td> Spotswood </Td> <Td> 6 </Td> <Td> Borough </Td> <Td> 8,257 </Td> <Td> 3,242 </Td> <Td> 2.47 </Td> <Td> 0.20 </Td> <Td> 2.27 </Td> <Td> 3,642.2 </Td> <Td> 1,430.1 </Td> <Td> Outcalt </Td> </Tr> <Tr> <Td> Woodbridge Township </Td> <Td> 18 </Td> <Td> Township </Td> <Td> 99,585 </Td> <Td> 36,124 </Td> <Td> 24.51 </Td> <Td> 1.29 </Td> <Td> 23.21 </Td> <Td> 4,290.0 </Td> <Td> 1,556.2 </Td> <Td> Avenel CDP (17,011) Boynton Beach Colonia CDP (17,795) Edgars Fords CDP (15,187) Hazelton Hopelawn Iselin CDP (18,695) Keasbey Lynn Woodoaks Menlo Park Terrace Port Reading CDP (3,728) Sand Hills Sewaren CDP (2,756) Shore View Woodbridge CDP (19,265) Woodbridge Oaks </Td> </Tr> </Table> <Tr> <Th> Municipality </Th> <Th> Map key </Th> <Th> Municipal type </Th> <Th> Population </Th> <Th> Housing units </Th> <Th> Total area </Th> <Th> Water area </Th> <Th> Land area </Th> <Th> Pop . density </Th> <Th> Housing density </Th> <Th> Unincorporated communities </Th> </Tr>

How many cities are in middlesex county nj
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