Last official estimated population of Summit County was 36,503 (year 2014)[1]. This was 0.011% of total US population and 1.2% of total Utah state population. Area of Summit County is 1,880.8 mi² (=4871.4 km²), in this year population density was 19.41 p/mi². If population growth rate would be same as in period 2010-2014 (+0.12%/yr), Summit County population in 2024 would be 36,954 [0].
Historical population of Summit County for period 1860-2014 [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
[1860-1870] +28.92 %/yr
[1870-1880] +6.96 %/yr
[1880-1890] +4.62 %/yr
[1890-1900] +2.01 %/yr
[1900-1910] -1.4 %/yr
[1910-1920] -0.42 %/yr
[1920-1930] +1.94 %/yr
[1930-1940] -0.89 %/yr
[1940-1950] -2.53 %/yr
[1950-1960] -1.72 %/yr
[1960-1970] +0.36 %/yr
[1970-1980] +5.66 %/yr
[1980-1990] +4.29 %/yr
[1990-2000] +6.72 %/yr
[2000-2005] +2.79 %/yr
[2005-2010] +1.25 %/yr
[2010-2014] +0.12 %/yr
Looking for settlements in Summit County? Visit this page: Settlements in Summit County, UT
Population of Summit County by age groups male (M) and female (F)[1b]
| Age Gr. | (M) | (F) | Total |
| 0 to 4 | 1165 | 1198 | 2,363 |
| 5 to 9 | 1406 | 1419 | 2,825 |
| 10 to 14 | 1702 | 1551 | 3,253 |
| 15 to 19 | 1488 | 1264 | 2,752 |
| 20 to 24 | 1171 | 978 | 2,149 |
| 25 to 29 | 1196 | 1100 | 2,296 |
| 30 to 34 | 1169 | 1198 | 2,367 |
| 35 to 39 | 1334 | 1204 | 2,538 |
| 40 to 44 | 1455 | 1453 | 2,908 |
| 45 to 49 | 1463 | 1556 | 3,019 |
| 50 to 54 | 1588 | 1609 | 3,197 |
| 55 to 59 | 1612 | 1567 | 3,179 |
| 60 to 64 | 1245 | 1165 | 2,410 |
| 65 to 69 | 843 | 794 | 1,637 |
| 70 to 74 | 616 | 493 | 1,109 |
| 75 to 79 | 281 | 261 | 542 |
| 80 to 84 | 142 | 149 | 291 |
| 85+ | 122 | 148 | 270 |
Summit 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 | 19393 | 18455 | 37,848 |
| WA | 19137 | 18154 | 37,291 |
| NH | 17629 | 16935 | 34,564 |
| NHWAC | 17177 | 16409 | 33,586 |
| NHWA | 16962 | 16162 | 33,124 |
| H | 2369 | 2172 | 4,541 |
| HWAC | 2216 | 2046 | 4,262 |
| HWA | 2175 | 1992 | 4,167 |
| AAC | 402 | 513 | 915 |
| NHAAC | 382 | 481 | 863 |
| AA | 290 | 367 | 657 |
| NHAA | 275 | 348 | 623 |
| TOM | 268 | 323 | 591 |
| NHTOM | 227 | 266 | 493 |
| IAC | 197 | 226 | 423 |
| BAC | 211 | 180 | 391 |
| BA | 160 | 119 | 279 |
| NHIAC | 116 | 140 | 256 |
| NHBAC | 129 | 126 | 255 |
| IA | 107 | 112 | 219 |
| NHBA | 90 | 82 | 172 |
| HIAC | 81 | 86 | 167 |
| HBAC | 82 | 54 | 136 |
| NAC | 65 | 59 | 124 |
| HIA | 61 | 56 | 117 |
| HBA | 70 | 37 | 107 |
| NHIA | 46 | 56 | 102 |
| NHNAC | 54 | 47 | 101 |
| HTOM | 41 | 57 | 98 |
| NA | 36 | 32 | 68 |
| HAAC | 20 | 32 | 52 |
| NHNA | 29 | 21 | 50 |
| HAA | 15 | 19 | 34 |
| HNAC | 11 | 12 | 23 |
| HNA | 7 | 11 | 18 |
• Salt Lake County population
52 mi, 
254°
• Utah County
63.6 mi, 
215°
• Davis County
65.4 mi, 
280°
• Weber County
54.7 mi, 
300°
• Cache County
71.9 mi, 
325°
• Wasatch County
38.5 mi, 
195°
• Uinta County
35.6 mi, 
36°
• Duchesne County
49.2 mi, 
144°
• Morgan County
35.2 mi, 295°
• Rich County
54.1 mi, 
344°
[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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