Last official estimated population of Rockland County was 312,475 (year 2014)[1]. This was 0.098% of total US population and 1.6% of total New York state population. Area of Rockland County is 199.3 mi² (=516.3 km²), in this year population density was 1,567.55 p/mi². If population growth rate would be same as in period 2010-2014 (+0.06%/yr), Rockland County population in 2026 would be 314,851 [0].
Historical population of Rockland County for period 1800-2014 [1] , [2] , [3]:
Estimated population for 2014[1]. Population density is in p./sq.mi [4]. Changes are for period 2010-2015. Value is %/year. Boundary lines are approx. 2012 [5]. Click on flag to hide it.
Population • Density • Changes • Legends • Position
[1800-1810] +2.02 %/yr
[1810-1820] +1.31 %/yr
[1820-1830] +0.61 %/yr
[1830-1840] +2.46 %/yr
[1840-1850] +3.54 %/yr
[1850-1860] +2.86 %/yr
[1860-1870] +1.15 %/yr
[1870-1880] +0.94 %/yr
[1880-1890] +2.42 %/yr
[1890-1900] +0.86 %/yr
[1900-1910] +2.04 %/yr
[1910-1920] -0.29 %/yr
[1920-1930] +2.73 %/yr
[1930-1940] +2.22 %/yr
[1940-1950] +1.86 %/yr
[1950-1960] +4.36 %/yr
[1960-1970] +5.33 %/yr
[1970-1980] +1.22 %/yr
[1980-1990] +0.23 %/yr
[1990-2000] +0.78 %/yr
[2000-2005] +0.82 %/yr
[2005-2010] +0.85 %/yr
[2010-2014] +0.06 %/yr
Looking for settlements in Rockland County? Visit this page: Settlements in Rockland County, NY
Population of Rockland County by age groups male (M) and female (F)[1b]
| Age Gr. | (M) | (F) | Total |
| 0 to 4 | 12477 | 11948 | 24,425 |
| 5 to 9 | 12870 | 12140 | 25,010 |
| 10 to 14 | 12853 | 12238 | 25,091 |
| 15 to 19 | 12319 | 11637 | 23,956 |
| 20 to 24 | 11069 | 10808 | 21,877 |
| 25 to 29 | 9744 | 8938 | 18,682 |
| 30 to 34 | 9225 | 8923 | 18,148 |
| 35 to 39 | 8835 | 8934 | 17,769 |
| 40 to 44 | 9014 | 9589 | 18,603 |
| 45 to 49 | 10345 | 10838 | 21,183 |
| 50 to 54 | 10951 | 11496 | 22,447 |
| 55 to 59 | 10187 | 10709 | 20,896 |
| 60 to 64 | 8419 | 9266 | 17,685 |
| 65 to 69 | 6903 | 8337 | 15,240 |
| 70 to 74 | 5017 | 6144 | 11,161 |
| 75 to 79 | 3561 | 4847 | 8,408 |
| 80 to 84 | 2646 | 3773 | 6,419 |
| 85+ | 2337 | 4529 | 6,866 |
Rockland County resident population estimates by Sex, Race, and Hispanic Origin[1b]. For full list of abbrevations see: population.us/about page.
| Race | Male | Female | Total |
| NH | 130423 | 137945 | 268,368 |
| WAC | 126919 | 129933 | 256,852 |
| WA | 124339 | 127314 | 251,653 |
| NHWAC | 102504 | 106445 | 208,949 |
| NHWA | 100780 | 104707 | 205,487 |
| H | 28349 | 27149 | 55,498 |
| HWAC | 24415 | 23488 | 47,903 |
| BAC | 22018 | 24286 | 46,304 |
| HWA | 23559 | 22607 | 46,166 |
| BA | 20117 | 22265 | 42,382 |
| NHBAC | 18535 | 20889 | 39,424 |
| NHBA | 17359 | 19637 | 36,996 |
| AAC | 11183 | 12474 | 23,657 |
| NHAAC | 10822 | 12087 | 22,909 |
| AA | 10147 | 11434 | 21,581 |
| NHAA | 9909 | 11189 | 21,098 |
| HBAC | 3483 | 3397 | 6,880 |
| TOM | 3064 | 3154 | 6,218 |
| HBA | 2758 | 2628 | 5,386 |
| NHTOM | 2095 | 2152 | 4,247 |
| IAC | 1674 | 1541 | 3,215 |
| HTOM | 969 | 1002 | 1,971 |
| HIAC | 978 | 825 | 1,803 |
| IA | 900 | 725 | 1,625 |
| NHIAC | 696 | 716 | 1,412 |
| HIA | 653 | 506 | 1,159 |
| NAC | 382 | 404 | 786 |
| HAAC | 361 | 387 | 748 |
| HAA | 238 | 245 | 483 |
| NHIA | 247 | 219 | 466 |
| HNAC | 226 | 225 | 451 |
| NA | 205 | 202 | 407 |
| NHNAC | 156 | 179 | 335 |
| HNA | 172 | 161 | 333 |
| NHNA | 33 | 41 | 74 |
• New York County population
26.3 mi, 
173°
• Bronx County
23 mi, 
157°
• Westchester County
14.5 mi, 
90°
• Bergen County
13.7 mi, 
190°
• Essex County
27.9 mi, 
204°
• Hudson County
29.4 mi, 185°
• Passaic County
16.4 mi, 
240°
• Morris County
34.1 mi, 
233°
• Orange County
22.5 mi, 
319°
• Putnam County
23.9 mi, 
37°
[0] Calculated by population.us from last known population growth rate, not official data.
[1] County population - 2014, archived from the original, retrieved 02/23/2016
[1b] Annual County Resident Population Estimates by Age, Sex, Race, and Hispanic Origin, (used only data for 2014) archived from the original, retrieved 02/23/2016
[2] County population - 2000-2010, archived from the original, retrieved 02/23/2016
[3] Population of States and Counties of the United States: 1790 to 1992, PDF, 15 Mb, census.gov, retrieved 02/23/2016
[4] County area, latitude longitude data, retrieved 02/23/2016
[5] County boundaries, CSV files on boundaries.us, retrived 03/18/2016
*Orange New York Notes
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