Last official estimated population of Rockwall County was 78,967 (year 2014)[1]. This was 0.025% of total US population and 0.3% of total Texas state population. Area of Rockwall County is 148.8 mi² (=385.3 km²), in this year population density was 530.84 p/mi². If population growth rate would be same as in period 2010-2014 (+0.2%/yr), Rockwall County population in 2026 would be 80,888 [0].
Historical population of Rockwall County for period 1880-2014 [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

[1880-1890] +7.18 %/yr
[1890-1900] +3.63 %/yr
[1900-1910] -0.55 %/yr
[1910-1920] +0.63 %/yr
[1920-1930] -1.14 %/yr
[1930-1940] -0.82 %/yr
[1940-1950] -1.35 %/yr
[1950-1960] -0.46 %/yr
[1960-1970] +1.83 %/yr
[1970-1980] +7.5 %/yr
[1980-1990] +5.83 %/yr
[1990-2000] +5.33 %/yr
[2000-2005] +7 %/yr
[2005-2010] +5.36 %/yr
[2010-2014] +0.2 %/yr
Looking for settlements in Rockwall County? Visit this page: Settlements in Rockwall County, TX
Population of Rockwall County by age groups male (M) and female (F)[1b]
| Age Gr. | (M) | (F) | Total |
| 0 to 4 | 2765 | 2626 | 5,391 |
| 5 to 9 | 3395 | 3366 | 6,761 |
| 10 to 14 | 3870 | 3803 | 7,673 |
| 15 to 19 | 3563 | 3279 | 6,842 |
| 20 to 24 | 2376 | 2223 | 4,599 |
| 25 to 29 | 2004 | 2138 | 4,142 |
| 30 to 34 | 2751 | 2909 | 5,660 |
| 35 to 39 | 3034 | 3330 | 6,364 |
| 40 to 44 | 3323 | 3553 | 6,876 |
| 45 to 49 | 3297 | 3216 | 6,513 |
| 50 to 54 | 3226 | 3363 | 6,589 |
| 55 to 59 | 2677 | 2942 | 5,619 |
| 60 to 64 | 2149 | 2256 | 4,405 |
| 65 to 69 | 1729 | 1885 | 3,614 |
| 70 to 74 | 1262 | 1456 | 2,718 |
| 75 to 79 | 775 | 932 | 1,707 |
| 80 to 84 | 446 | 698 | 1,144 |
| 85+ | 377 | 815 | 1,192 |
Rockwall 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 | 38846 | 40266 | 79,112 |
| WA | 38104 | 39519 | 77,623 |
| NH | 35482 | 37435 | 72,917 |
| NHWAC | 31684 | 33276 | 64,960 |
| NHWA | 31069 | 32641 | 63,710 |
| H | 7537 | 7355 | 14,892 |
| HWAC | 7162 | 6990 | 14,152 |
| HWA | 7035 | 6878 | 13,913 |
| BAC | 2950 | 2987 | 5,937 |
| NHBAC | 2764 | 2802 | 5,566 |
| BA | 2631 | 2689 | 5,320 |
| NHBA | 2499 | 2550 | 5,049 |
| AAC | 1381 | 1675 | 3,056 |
| NHAAC | 1281 | 1594 | 2,875 |
| AA | 1092 | 1383 | 2,475 |
| NHAA | 1026 | 1329 | 2,355 |
| TOM | 813 | 810 | 1,623 |
| NHTOM | 668 | 685 | 1,353 |
| IAC | 581 | 625 | 1,206 |
| NHIAC | 375 | 416 | 791 |
| IA | 332 | 346 | 678 |
| HIAC | 206 | 209 | 415 |
| NHIA | 189 | 200 | 389 |
| HBAC | 186 | 185 | 371 |
| HIA | 143 | 146 | 289 |
| HBA | 132 | 139 | 271 |
| HTOM | 145 | 125 | 270 |
| NAC | 103 | 84 | 187 |
| HAAC | 100 | 81 | 181 |
| NHNAC | 71 | 63 | 134 |
| HAA | 66 | 54 | 120 |
| NA | 47 | 43 | 90 |
| NHNA | 31 | 30 | 61 |
| HNAC | 32 | 21 | 53 |
| HNA | 16 | 13 | 29 |
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[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
*Kaufman Texas Notes
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