Last official estimated population of Porter County was 164,491 (year 2014)[1]. This was 0.052% of total US population and 2.5% of total Indiana state population. Area of Porter County is 521.8 mi² (=1351.4 km²), in this year population density was 315.25 p/mi². If population growth rate would be same as in period 2010-2014 (+0.02%/yr), Porter County population in 2026 would be 164,936 [0].
Historical population of Porter County for period 1840-2014 [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
[1840-1850] +9.24 %/yr
[1850-1860] +7.02 %/yr
[1860-1870] +3.06 %/yr
[1870-1880] +2.14 %/yr
[1880-1890] +0.47 %/yr
[1890-1900] +0.61 %/yr
[1900-1910] +0.69 %/yr
[1910-1920] -0.14 %/yr
[1920-1930] +1.2 %/yr
[1930-1940] +2.01 %/yr
[1940-1950] +3.71 %/yr
[1950-1960] +4.17 %/yr
[1960-1970] +3.75 %/yr
[1970-1980] +3.24 %/yr
[1980-1990] +0.74 %/yr
[1990-2000] +1.31 %/yr
[2000-2005] +1.23 %/yr
[2005-2010] +1.04 %/yr
[2010-2014] +0.02 %/yr
Looking for settlements in Porter County? Visit this page: Settlements in Porter County, IN
Population of Porter County by age groups male (M) and female (F)[1b]
| Age Gr. | (M) | (F) | Total |
| 0 to 4 | 4567 | 4612 | 9,179 |
| 5 to 9 | 5237 | 5025 | 10,262 |
| 10 to 14 | 5947 | 5660 | 11,607 |
| 15 to 19 | 5930 | 5661 | 11,591 |
| 20 to 24 | 5522 | 5427 | 10,949 |
| 25 to 29 | 5079 | 4988 | 10,067 |
| 30 to 34 | 5345 | 5339 | 10,684 |
| 35 to 39 | 5240 | 5391 | 10,631 |
| 40 to 44 | 5565 | 5693 | 11,258 |
| 45 to 49 | 5404 | 5599 | 11,003 |
| 50 to 54 | 5872 | 6318 | 12,190 |
| 55 to 59 | 6180 | 6525 | 12,705 |
| 60 to 64 | 5433 | 5526 | 10,959 |
| 65 to 69 | 4096 | 4319 | 8,415 |
| 70 to 74 | 2761 | 3029 | 5,790 |
| 75 to 79 | 1719 | 2252 | 3,971 |
| 80 to 84 | 1168 | 1642 | 2,810 |
| 85+ | 959 | 2046 | 3,005 |
Porter 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 | 77415 | 80122 | 157,537 |
| WA | 76203 | 78832 | 155,035 |
| NH | 74257 | 76994 | 151,251 |
| NHWAC | 70091 | 72517 | 142,608 |
| NHWA | 69071 | 71442 | 140,513 |
| H | 7767 | 8058 | 15,825 |
| HWAC | 7324 | 7605 | 14,929 |
| HWA | 7132 | 7390 | 14,522 |
| BAC | 3621 | 3775 | 7,396 |
| NHBAC | 3308 | 3437 | 6,745 |
| BA | 3096 | 3207 | 6,303 |
| NHBA | 2863 | 2957 | 5,820 |
| AAC | 1484 | 1725 | 3,209 |
| NHAAC | 1396 | 1627 | 3,023 |
| TOM | 1279 | 1345 | 2,624 |
| AA | 1116 | 1326 | 2,442 |
| NHAA | 1074 | 1284 | 2,358 |
| NHTOM | 1065 | 1112 | 2,177 |
| IAC | 768 | 795 | 1,563 |
| NHIAC | 513 | 535 | 1,048 |
| HBAC | 313 | 338 | 651 |
| IA | 299 | 314 | 613 |
| HIAC | 255 | 260 | 515 |
| HBA | 233 | 250 | 483 |
| HTOM | 214 | 233 | 447 |
| NHIA | 163 | 181 | 344 |
| HIA | 136 | 133 | 269 |
| HAAC | 88 | 98 | 186 |
| NAC | 90 | 90 | 180 |
| NHNAC | 62 | 62 | 124 |
| HAA | 42 | 42 | 84 |
| NA | 31 | 28 | 59 |
| HNAC | 28 | 28 | 56 |
| NHNA | 21 | 18 | 39 |
| HNA | 10 | 10 | 20 |
• Cook County population
39.8 mi, 
311°
• Lake County
15.9 mi, 
260°
• St. Joseph County
41.2 mi, 
79°
• Berrien County
25.9 mi, 
41°
• LaPorte County
17.1 mi, 80°
• Marshall County
43.5 mi, 
107°
• Jasper County
34.1 mi, 
184°
• Starke County
27 mi, 
125°
• Newton County
41.6 mi, 
204°
• Pulaski County
37.6 mi, 
148°
[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
*St. Joseph Indiana Notes
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