Last official estimated population of Morris County was 492,706 (year 2014)[1]. This was 0.155% of total US population and 5.5% of total New Jersey state population. Area of Morris County is 481.7 mi² (=1247.5 km²), in this year population density was 1,022.94 p/mi². If population growth rate would be same as in period 2010-2014 (+0.02%/yr), Morris County population in 2024 would be 493,783 [0].
Historical population of Morris County for period 1790-2014 [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
[1790-1800] +0.91 %/yr
[1800-1810] +2.09 %/yr
[1810-1820] -0.21 %/yr
[1820-1830] +1.03 %/yr
[1830-1840] +0.88 %/yr
[1840-1850] +1.56 %/yr
[1850-1860] +1.41 %/yr
[1860-1870] +2.21 %/yr
[1870-1880] +1.66 %/yr
[1880-1890] +0.62 %/yr
[1890-1900] +1.88 %/yr
[1900-1910] +1.38 %/yr
[1910-1920] +1.02 %/yr
[1920-1930] +2.94 %/yr
[1930-1940] +1.3 %/yr
[1940-1950] +2.72 %/yr
[1950-1960] +4.76 %/yr
[1960-1970] +3.9 %/yr
[1970-1980] +0.61 %/yr
[1980-1990] +0.33 %/yr
[1990-2000] +1.11 %/yr
[2000-2005] +0.64 %/yr
[2005-2010] +0.28 %/yr
[2010-2014] +0.02 %/yr
Looking for settlements in Morris County? Visit this page: Settlements in Morris County, NJ
Population of Morris County by age groups male (M) and female (F)[1b]
| Age Gr. | (M) | (F) | Total |
| 0 to 4 | 13146 | 12438 | 25,584 |
| 5 to 9 | 15227 | 14542 | 29,769 |
| 10 to 14 | 17617 | 16872 | 34,489 |
| 15 to 19 | 17609 | 16739 | 34,348 |
| 20 to 24 | 14607 | 13839 | 28,446 |
| 25 to 29 | 13197 | 12389 | 25,586 |
| 30 to 34 | 14151 | 13989 | 28,140 |
| 35 to 39 | 14415 | 14808 | 29,223 |
| 40 to 44 | 16561 | 18014 | 34,575 |
| 45 to 49 | 20132 | 20994 | 41,126 |
| 50 to 54 | 21338 | 21913 | 43,251 |
| 55 to 59 | 18630 | 19478 | 38,108 |
| 60 to 64 | 14808 | 15409 | 30,217 |
| 65 to 69 | 11460 | 12899 | 24,359 |
| 70 to 74 | 8176 | 9730 | 17,906 |
| 75 to 79 | 5499 | 7129 | 12,628 |
| 80 to 84 | 4148 | 5960 | 10,108 |
| 85+ | 4169 | 7695 | 11,864 |
Morris 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 | 212516 | 223147 | 435,663 |
| WAC | 210524 | 218086 | 428,610 |
| WA | 206608 | 214066 | 420,674 |
| NHWAC | 180292 | 188536 | 368,828 |
| NHWA | 177121 | 185205 | 362,326 |
| H | 32374 | 31690 | 64,064 |
| HWAC | 30232 | 29550 | 59,782 |
| HWA | 29487 | 28861 | 58,348 |
| AAC | 26834 | 28546 | 55,380 |
| NHAAC | 26403 | 28118 | 54,521 |
| AA | 24483 | 26163 | 50,646 |
| NHAA | 24255 | 25918 | 50,173 |
| BAC | 10249 | 11047 | 21,296 |
| NHBAC | 8565 | 9384 | 17,949 |
| BA | 8627 | 9276 | 17,903 |
| NHBA | 7417 | 8076 | 15,493 |
| TOM | 4279 | 4455 | 8,734 |
| NHTOM | 3474 | 3694 | 7,168 |
| HBAC | 1684 | 1663 | 3,347 |
| IAC | 1519 | 1580 | 3,099 |
| HBA | 1210 | 1200 | 2,410 |
| HIAC | 817 | 802 | 1,619 |
| IA | 786 | 787 | 1,573 |
| HTOM | 805 | 761 | 1,566 |
| NHIAC | 702 | 778 | 1,480 |
| HIA | 593 | 584 | 1,177 |
| HAAC | 431 | 428 | 859 |
| NAC | 269 | 273 | 542 |
| HAA | 228 | 245 | 473 |
| NHIA | 193 | 203 | 396 |
| NHNAC | 180 | 205 | 385 |
| NA | 107 | 90 | 197 |
| HNAC | 89 | 68 | 157 |
| NHNA | 56 | 51 | 107 |
| HNA | 51 | 39 | 90 |
• Bergen County population
25.7 mi, 
74°
• Essex County
16.5 mi, 
107°
• Hudson County
26 mi, 109°
• Union County
18.6 mi, 
137°
• Passaic County
18 mi, 
46°
• Richmond County
29.6 mi, 
133°
• Somerset County
20.6 mi, 
190°
• Sussex County
20.7 mi, 
338°
• Hunterdon County
27.8 mi, 
223°
• Warren County
24.2 mi, 
269°
[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
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