Population.us > Counties > New Jersey > Mercer County

Population of Mercer County

Last official estimated population of Mercer County was 368,043 (year 2014)[1]. This was 0.115% of total US population and 4.1% of total New Jersey state population. Area of Mercer County is 228.9 mi² (=592.8 km²), in this year population density was 1,607.96 p/mi². If population growth rate would be same as in period 2010-2014 (+0.1%/yr), Mercer County population in 2022 would be 371,122 [0].


Historical population

Historical population of Mercer County for period 1840-2014 [1] , [2] , [3]:

Maps: Population, population density, population changes

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.

PopulationDensityChangesLegendsPosition

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Annual growth rate

[1840-1850] +2.67 %/yr
[1850-1860] +2.95 %/yr
[1860-1870] +2.17 %/yr
[1870-1880] +2.27 %/yr
[1880-1890] +3.25 %/yr
[1890-1900] +1.78 %/yr
[1900-1910] +2.8 %/yr
[1910-1920] +2.44 %/yr
[1920-1930] +1.59 %/yr
[1930-1940] +0.53 %/yr
[1940-1950] +1.53 %/yr
[1950-1960] +1.49 %/yr
[1960-1970] +1.33 %/yr
[1970-1980] +0.13 %/yr
[1980-1990] +0.57 %/yr
[1990-2000] +0.74 %/yr
[2000-2005] +0.63 %/yr
[2005-2010] +0.25 %/yr
[2010-2014] +0.1 %/yr

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Demography

Population of Mercer County by age groups male (M) and female (F)[1b]

Age Gr. (M) (F) Total
0 to 4 11050 10708 21,758
5 to 9 11388 10536 21,924
10 to 14 11802 11455 23,257
15 to 19 13561 13810 27,371
20 to 24 14616 14027 28,643
25 to 29 12175 11109 23,284
30 to 34 11920 11370 23,290
35 to 39 11761 11870 23,631
40 to 44 12748 12906 25,654
45 to 49 13170 13498 26,668
50 to 54 13660 14151 27,811
55 to 59 12496 13323 25,819
60 to 64 10015 11183 21,198
65 to 69 7675 8920 16,595
70 to 74 5152 6404 11,556
75 to 79 3575 4958 8,533
80 to 84 2635 3982 6,617
85+ 2511 5417 7,928

Mercer 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 149118 160858 309,976
WAC 123565 126135 249,700
WA 120335 122844 243,179
NHWAC 95513 101731 197,244
NHWA 93087 99187 192,274
BAC 39316 43906 83,222
BA 37228 41675 78,903
NHBAC 35518 40257 75,775
NHBA 34056 38632 72,688
H 32792 28769 61,561
HWAC 28052 24404 52,456
HWA 27248 23657 50,905
AAC 20517 21448 41,965
NHAAC 20070 21011 41,081
AA 18823 19726 38,549
NHAA 18559 19452 38,011
TOM 3927 4085 8,012
HBAC 3798 3649 7,447
NHTOM 3012 3211 6,223
HBA 3172 3043 6,215
IAC 2145 1916 4,061
IA 1227 980 2,207
HIAC 1203 961 2,164
NHIAC 942 955 1,897
HTOM 915 874 1,789
HIA 912 695 1,607
NAC 655 647 1,302
HAAC 447 437 884
NA 370 317 687
NHNAC 320 363 683
HNAC 335 284 619
NHIA 315 285 600
HAA 264 274 538
HNA 281 226 507
NHNA 89 91 180

Counties near Mercer County

Philadelphia County population 29.5 mi, 230°
Middlesex County 19 mi, 55°
Montgomery County 35.5 mi, 261°
Monmouth County 29.1 mi, 89°
Bucks County 21.6 mi, 280°
Union County 33.3 mi, 38°
Richmond County 35.4 mi, 56°
Burlington County 28.2 mi, 175°
Somerset County 20 mi, 12°
Hunterdon County 22.4 mi, 330°


Sources, notices

[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

See note 1 New Jersey Notes

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