Last official estimated population of Warren County was 108,676 (year 2014)[1]. This was 0.034% of total US population and 1.2% of total New Jersey state population. Area of Warren County is 362.8 mi² (=939.7 km²), in this year population density was 299.52 p/mi². If population growth rate would be same as in period 2010-2014 (-0%/yr), Warren County population in 2024 would be 108,636 [0].
Historical population of Warren County for period 1830-2014 [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
[1830-1840] +0.9 %/yr
[1840-1850] +0.94 %/yr
[1850-1860] +2.43 %/yr
[1860-1870] +1.9 %/yr
[1870-1880] +0.64 %/yr
[1880-1890] -0.01 %/yr
[1890-1900] +0.33 %/yr
[1900-1910] +1.35 %/yr
[1910-1920] +0.42 %/yr
[1920-1930] +0.91 %/yr
[1930-1940] +0.17 %/yr
[1940-1950] +0.81 %/yr
[1950-1960] +1.52 %/yr
[1960-1970] +1.57 %/yr
[1970-1980] +1.34 %/yr
[1980-1990] +0.83 %/yr
[1990-2000] +1.11 %/yr
[2000-2005] +1.23 %/yr
[2005-2010] -0.03 %/yr
[2010-2014] -0 %/yr
Looking for settlements in Warren County? Visit this page: Settlements in Warren County, NJ
Population of Warren County by age groups male (M) and female (F)[1b]
| Age Gr. | (M) | (F) | Total |
| 0 to 4 | 2424 | 2460 | 4,884 |
| 5 to 9 | 3105 | 3068 | 6,173 |
| 10 to 14 | 3598 | 3499 | 7,097 |
| 15 to 19 | 3674 | 3424 | 7,098 |
| 20 to 24 | 3429 | 3267 | 6,696 |
| 25 to 29 | 2931 | 2792 | 5,723 |
| 30 to 34 | 2794 | 2767 | 5,561 |
| 35 to 39 | 2794 | 2854 | 5,648 |
| 40 to 44 | 3480 | 3758 | 7,238 |
| 45 to 49 | 4197 | 4361 | 8,558 |
| 50 to 54 | 4658 | 4949 | 9,607 |
| 55 to 59 | 4336 | 4383 | 8,719 |
| 60 to 64 | 3323 | 3497 | 6,820 |
| 65 to 69 | 2599 | 2884 | 5,483 |
| 70 to 74 | 1866 | 2204 | 4,070 |
| 75 to 79 | 1212 | 1546 | 2,758 |
| 80 to 84 | 888 | 1357 | 2,245 |
| 85+ | 829 | 1710 | 2,539 |
Warren 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 |
| WAC | 48058 | 50585 | 98,643 |
| NH | 47613 | 50367 | 97,980 |
| WA | 47309 | 49838 | 97,147 |
| NHWAC | 43933 | 46576 | 90,509 |
| NHWA | 43316 | 45950 | 89,266 |
| H | 4524 | 4413 | 8,937 |
| HWAC | 4125 | 4009 | 8,134 |
| HWA | 3993 | 3888 | 7,881 |
| BAC | 2764 | 2802 | 5,566 |
| NHBAC | 2433 | 2448 | 4,881 |
| BA | 2389 | 2402 | 4,791 |
| NHBA | 2141 | 2130 | 4,271 |
| AAC | 1730 | 1856 | 3,586 |
| NHAAC | 1673 | 1784 | 3,457 |
| AA | 1458 | 1586 | 3,044 |
| NHAA | 1422 | 1534 | 2,956 |
| TOM | 808 | 814 | 1,622 |
| NHTOM | 665 | 681 | 1,346 |
| HBAC | 331 | 354 | 685 |
| IAC | 322 | 311 | 633 |
| HBA | 248 | 272 | 520 |
| NHIAC | 207 | 223 | 430 |
| HTOM | 143 | 133 | 276 |
| IA | 124 | 111 | 235 |
| HIAC | 115 | 88 | 203 |
| NAC | 88 | 59 | 147 |
| HAAC | 57 | 72 | 129 |
| NHIA | 56 | 64 | 120 |
| HIA | 68 | 47 | 115 |
| HAA | 36 | 52 | 88 |
| NA | 49 | 29 | 78 |
| NHNAC | 41 | 34 | 75 |
| HNAC | 47 | 25 | 72 |
| HNA | 36 | 21 | 57 |
| NHNA | 13 | 8 | 21 |
• Bucks County population
36.1 mi, 
188°
• Morris County
24.2 mi, 
89°
• Lehigh County
34.6 mi, 
241°
• Somerset County
28.5 mi, 
134°
• Northampton County
17.1 mi, 
245°
• Monroe County
21.8 mi, 
310°
• Sussex County
25.7 mi, 
40°
• Hunterdon County
20.6 mi, 
165°
• Carbon County
36.6 mi, 
277°
• Pike County
32.7 mi, 
357°
[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
*Sussex New Jersey Notes
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