block group Density
per acre		 Units
per acre		 Platted Decades
Built Up		 Primary Housing Type Neighborhood
Tract 69, Blockgroup 2 75.92 35.2 1839 1840 – 1970 apartments above retail Boerum Hill
Tract 77, Blockgroup 1 64.22 35.35 1839 1840 – 1980 single family attached Gowanus
Tract 94, Blockgroup 1 119.88 37.57 1839 1900 – 1930 single family semi-detached Sunset Park
Tract 134, Blockgroup 3 80.81 35.87 1880 1890 – 1910 single family attached Bay Ridge
Tract 139, Blockgroup 3 102.24 45.54 1839 1860 – 1870 single family attached Park Slope
Tract 145, Blockgroup 4 63.54 24.11 1839 1870 – 1900 apartments above retail Sunset Park
Tract 153, Blockgroup 2 93.66 46.15 1839 1860 – 1880 single family attached Park Slope
Tract 162, Blockgroup 2 62.46 35.5 1880 1870 – 1950 single family attached Bay Ridge
Tract 181, Blockgroup 1 63.79 32.7 1839 1860 – 1890 single family attached Fort Greene
Tract 185.01, Blockgroup 1 180.57 62.95 1839 1870 – 1944 five story apartments Fort Greene
Tract 186, Blockgroup 1 67.20 27.2 1900 1900 – 1920 single family semi-detached Bensonhurst
Tract 210, Blockgroup 1 87.55 36.61 1890 1900 – 1930 single family semi-detached Borough Park
Tract 218, Blockgroup 1 91.78 23.58 1890 1900 – 1930 apartments above retail Borough Park
Tract 225, Blockgroup 1 28.11 11.15 1839 1870 – 1890 two to four flats Crown Heights
Tract 226, Blockgroup 1 47.20 11.36 1890 1890 – 1930 industrial Borough Park
Tract 227, Blockgroup 1 67.28 29.24 1839 1870 – 1910 apartments above retail Bedford-Stuyvesant
Tract 238, Blockgroup 1 98.78 32.89 1880 1880 – 1920 two to four flats Borough Park
Tract 241, Blockgroup 3 37.26 17.19 1839 1900 – 2000 two to four flats Bedford-Stuyvesant
Tract 253, Blockgroup 3 25.71 11.36 1839 1860 – 1910 two to four flats Bedford-Stuyvesant
Tract 258, Blockgroup 2 106.88 38.85 1900 1900 – 1920 single family semi-detached Bensonhurst
Tract 271.01, Blockgroup 3 36.86 16.67 1839 1860 – 1890 two to four flats Bedford-Stuyvesant
Tract 277, Blockgroup 4 122.27 45.02 1839 1870 – 1960 two to four flats Bedford-Stuyvesant
Tract 291, Blockgroup 1 53.52 25.54 1839 1880 – 1900 two to four flats Bedford-Stuyvesant
Tract 315, Blockgroup 2 129.75 62.04 1839 1880 – 1900 two to four flats Crown Heights
Tract 326, Blockgroup 1 50.89 16.69 1900 1920 – 1940 apartments above retail Coney Island
Tract 326, Blockgroup 2 125.45 39.87 1900 1920 – 1940 apartments above retail Coney Island
Tract 335, Blockgroup 3 52.63 14.06 1890 1910 – 1930 single family detached Crown Heights
Tract 359, Blockgroup 1 100.42 43.13 1890 1900 – 1930 two to four flats Crown Heights
Tract 360.02, Blockgroup 2 222.02 116.8 1900 1920 – 1940 apartments above retail Brighton Beach
Tract 396, Blockgroup 1 48.90 20.51 1900 1920 – 2000 single family detached Gravesend
Tract 403, Blockgroup 1 46.14 18.21 1840 1870 – 2000 two to four flats Bushwick
Tract 435, Blockgroup 1 106.72 27.48 1840 1870 – 2000 apartments above retail Bushwick
Tract 447, Blockgroup 2 45.36 14.16 1840 1870 – 2000 loft conversions Bushwick
Tract 480, Blockgroup 1 82.27 31.51 1850 1870 – 1920 two to four flats Parkville
Tract 492, Blockgroup 3 79.79 31.8 1870 1920 – 1960 apartments above retail Kensington
Tract 493, Blockgroup 2 162.57 55.89 1840 1840 – 1910 apartments above retail Williamsburg
Tract 505, Blockgroup 2 105.32 37.58 1840 1840 – 1910 two to four flats Williamsburg
Tract 533, Blockgroup 1 185.78 41.74 1839 1860 – 1880 two to four flats Williamsburg
Tract 553, Blockgroup 2 77.12 33.85 1830 1830 – 1900 two to four flats Williamsburg
Tract 554, Blockgroup 3 78.47 28.33 1900 1900 – 1920 two to four flats Sheepshead Bay
Tract 565, Blockgroup 1 104.38 46.09 1850 1870 – 1890 apartments above retail Greenpoint
Tract 569, Blockgroup 2 37.94 17.79 1850 1860 – 1920 two to four flats Greenpoint
Tract 571, Blockgroup 2 155.85 63.1 1850 1860 – 1890 apartments above retail Greenpoint
Tract 650, Blockgroup 1 39.91 15.35 1900 1800 – 1930 single family detached Flatlands
Tract 742, Blockgroup 1 69.25 20.24 1900 1900 – 1930 single family semi-detached Flatlands
Tract 804, Blockgroup 2 121.55 49.79 1860 1880 – 1910 five story apartments Prospect-Lefferts Gardens
Tract 840, Blockgroup 1 55.88 16.34 1890 1920 – 1930 single family semi-detached East Flatbush
Tract 862, Blockgroup 1 100.77 31.35 1890 1920 – 1930 two to four flats Rugby
Tract 882, Blockgroup 4 184.35 65.87 1870 1890 – 1910 two to four flats Brownsville
Tract 884, Blockgroup 1 141.67 54.69 1870 1890 – 1910 apartments above retail Brownsville
Tract 886, Blockgroup 1 119.16 44.03 1870 1890 – 1910 two to four flats Brownsville
Tract 900, Blockgroup 3 91.75 31.94 1870 1890 – 1910 two to four flats Brownsville
Tract 908, Blockgroup 3 154.90 58.88 1870 1955 – 1960 high-rise apartments Brownsville
Tract 1058, Blockgroup 1 56.18 25.57 1960 1962 – 1975 high-rise apartments East New York
Tract 1148, Blockgroup 1 45.77 14.6 1870 1880 – 1920 two to four flats Cypress Hills
Tract 1184, Blockgroup 3 107.45 31.48 1870 1880 – 1920 single family attached Cypress Hills
Tract 1194, Blockgroup 3 72.93 26.16 1880 1890 – 2000 two to four flats East New York