Last official estimated population of Clay County was 191,423 (year 2014)[1]. This was 0.06% of total US population and 0.9% of total Florida state population. Area of Clay County is 643.5 mi² (=1666.8 km²), in this year population density was 297.45 p/mi². If population growth rate would be same as in period 2010-2014 (+0.07%/yr), Clay County population in 2026 would be 193,107 [0].
Historical population of Clay 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] +0.92 %/yr
[1870-1880] +3.07 %/yr
[1880-1890] +6.15 %/yr
[1890-1900] +0.9 %/yr
[1900-1910] +0.82 %/yr
[1910-1920] -0.84 %/yr
[1920-1930] +2.01 %/yr
[1930-1940] -0.59 %/yr
[1940-1950] +8.27 %/yr
[1950-1960] +3.15 %/yr
[1960-1970] +5.08 %/yr
[1970-1980] +7.66 %/yr
[1980-1990] +4.68 %/yr
[1990-2000] +2.88 %/yr
[2000-2005] +3.77 %/yr
[2005-2010] +2.41 %/yr
[2010-2014] +0.07 %/yr
Looking for settlements in Clay County? Visit this page: Settlements in Clay County, FL
Population of Clay County by age groups male (M) and female (F)[1b]
| Age Gr. | (M) | (F) | Total |
| 0 to 4 | 5508 | 5415 | 10,923 |
| 5 to 9 | 6745 | 6428 | 13,173 |
| 10 to 14 | 7598 | 7174 | 14,772 |
| 15 to 19 | 7426 | 6964 | 14,390 |
| 20 to 24 | 6498 | 6003 | 12,501 |
| 25 to 29 | 6001 | 5782 | 11,783 |
| 30 to 34 | 5994 | 6136 | 12,130 |
| 35 to 39 | 5768 | 6422 | 12,190 |
| 40 to 44 | 6666 | 7249 | 13,915 |
| 45 to 49 | 7037 | 7299 | 14,336 |
| 50 to 54 | 7729 | 7898 | 15,627 |
| 55 to 59 | 6595 | 7129 | 13,724 |
| 60 to 64 | 5662 | 6278 | 11,940 |
| 65 to 69 | 5114 | 5434 | 10,548 |
| 70 to 74 | 3360 | 3790 | 7,150 |
| 75 to 79 | 2168 | 2557 | 4,725 |
| 80 to 84 | 1368 | 1734 | 3,102 |
| 85+ | 992 | 1877 | 2,869 |
Clay 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 | 89122 | 92342 | 181,464 |
| WAC | 84006 | 85902 | 169,908 |
| WA | 81473 | 83256 | 164,729 |
| NHWAC | 76025 | 77827 | 153,852 |
| NHWA | 73855 | 75572 | 149,427 |
| BAC | 11880 | 12476 | 24,356 |
| NHBAC | 10901 | 11465 | 22,366 |
| BA | 10590 | 11111 | 21,701 |
| NHBA | 9839 | 10328 | 20,167 |
| H | 9107 | 9227 | 18,334 |
| HWAC | 7981 | 8075 | 16,056 |
| HWA | 7618 | 7684 | 15,302 |
| AAC | 3839 | 4787 | 8,626 |
| NHAAC | 3601 | 4530 | 8,131 |
| AA | 2716 | 3583 | 6,299 |
| NHAA | 2575 | 3434 | 6,009 |
| TOM | 2794 | 2934 | 5,728 |
| NHTOM | 2394 | 2509 | 4,903 |
| IAC | 1201 | 1254 | 2,455 |
| HBAC | 979 | 1011 | 1,990 |
| NHIAC | 927 | 985 | 1,912 |
| HBA | 751 | 783 | 1,534 |
| IA | 517 | 524 | 1,041 |
| HTOM | 400 | 425 | 825 |
| NHIA | 365 | 387 | 752 |
| NAC | 305 | 373 | 678 |
| HIAC | 274 | 269 | 543 |
| NHNAC | 235 | 287 | 522 |
| HAAC | 238 | 257 | 495 |
| NA | 139 | 161 | 300 |
| HAA | 141 | 149 | 290 |
| HIA | 152 | 137 | 289 |
| NHNA | 94 | 112 | 206 |
| HNAC | 70 | 86 | 156 |
| HNA | 45 | 49 | 94 |
• Duval County population
27.4 mi,
28°
• Alachua County
36.5 mi,
233°
• St. Johns County
29.6 mi,
102°
• Flagler County
49.6 mi,
135°
• Putnam County
27.3 mi,
164°
• Nassau County
43.2 mi,
7°
• Columbia County
48.1 mi,
289°
• Bradford County
18.2 mi,
262°
• Baker County
35 mi,
311°
• Union County
30.4 mi,
278°
[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
*Duval; Alachua, Columbia Florida Notes
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