Last official estimated population of Cameron County was 407,672 (year 2014)[1]. This was 0.128% of total US population and 1.5% of total Texas state population. Area of Cameron County is 1,276.5 mi² (=3306 km²), in this year population density was 319.38 p/mi². If population growth rate would be same as in period 2010-2014 (+0.09%/yr), Cameron County population in 2026 would be 412,059 [0].
Historical population of Cameron County for period 1850-2014 [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

[1850-1860] -3.42 %/yr
[1860-1870] +6.2 %/yr
[1870-1880] +3.12 %/yr
[1880-1890] -0.36 %/yr
[1890-1900] +1.1 %/yr
[1900-1910] +5.37 %/yr
[1910-1920] +3.05 %/yr
[1920-1930] +7.78 %/yr
[1930-1940] +0.71 %/yr
[1940-1950] +4.17 %/yr
[1950-1960] +1.9 %/yr
[1960-1970] -0.73 %/yr
[1970-1980] +4.1 %/yr
[1980-1990] +2.18 %/yr
[1990-2000] +2.56 %/yr
[2000-2005] +2.2 %/yr
[2005-2010] +1.7 %/yr
[2010-2014] +0.09 %/yr
Looking for settlements in Cameron County? Visit this page: Settlements in Cameron County, TX
Population of Cameron County by age groups male (M) and female (F)[1b]
| Age Gr. | (M) | (F) | Total |
| 0 to 4 | 18592 | 18087 | 36,679 |
| 5 to 9 | 18358 | 17686 | 36,044 |
| 10 to 14 | 19228 | 18743 | 37,971 |
| 15 to 19 | 18258 | 17448 | 35,706 |
| 20 to 24 | 16004 | 15555 | 31,559 |
| 25 to 29 | 12543 | 12706 | 25,249 |
| 30 to 34 | 12329 | 13218 | 25,547 |
| 35 to 39 | 12507 | 13812 | 26,319 |
| 40 to 44 | 12216 | 14281 | 26,497 |
| 45 to 49 | 10941 | 12627 | 23,568 |
| 50 to 54 | 10468 | 12309 | 22,777 |
| 55 to 59 | 9709 | 11555 | 21,264 |
| 60 to 64 | 8725 | 10277 | 19,002 |
| 65 to 69 | 7746 | 8857 | 16,603 |
| 70 to 74 | 5655 | 6822 | 12,477 |
| 75 to 79 | 4285 | 5480 | 9,765 |
| 80 to 84 | 2958 | 4171 | 7,129 |
| 85+ | 2411 | 3825 | 6,236 |
Cameron 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 | 197735 | 212658 | 410,393 |
| WA | 196839 | 211784 | 408,623 |
| H | 178829 | 193998 | 372,827 |
| HWAC | 176378 | 191617 | 367,995 |
| HWA | 175809 | 191055 | 366,864 |
| NH | 24104 | 23461 | 47,565 |
| NHWAC | 21357 | 21041 | 42,398 |
| NHWA | 21030 | 20729 | 41,759 |
| BAC | 2253 | 1979 | 4,232 |
| AAC | 2032 | 1936 | 3,968 |
| BA | 1967 | 1686 | 3,653 |
| IAC | 1736 | 1713 | 3,449 |
| AA | 1741 | 1645 | 3,386 |
| NHAAC | 1568 | 1525 | 3,093 |
| NHAA | 1437 | 1398 | 2,835 |
| HIAC | 1386 | 1374 | 2,760 |
| IA | 1285 | 1233 | 2,518 |
| HBAC | 1137 | 1126 | 2,263 |
| HIA | 1066 | 1032 | 2,098 |
| NHBAC | 1116 | 853 | 1,969 |
| TOM | 968 | 971 | 1,939 |
| HBA | 950 | 951 | 1,901 |
| NHBA | 1017 | 735 | 1,752 |
| HTOM | 618 | 621 | 1,239 |
| HAAC | 464 | 411 | 875 |
| NHTOM | 350 | 350 | 700 |
| NHIAC | 350 | 339 | 689 |
| HAA | 304 | 247 | 551 |
| NHIA | 219 | 201 | 420 |
| NAC | 197 | 206 | 403 |
| NA | 133 | 140 | 273 |
| HNAC | 124 | 142 | 266 |
| HNA | 82 | 92 | 174 |
| NHNAC | 73 | 64 | 137 |
| NHNA | 51 | 48 | 99 |
• Hidalgo County population
48 mi,
294°
• Nueces County
113 mi,
358°
• Starr County
83.5 mi,
290°
• Jim Wells County
118.8 mi,
341°
• Kleberg County
93 mi,
353°
• Willacy County
26.9 mi,
346°
• Zapata County
122.1 mi,
300°
• Brooks County
78.8 mi,
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• Jim Hogg County
99.5 mi,
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• Kenedy County
54.8 mi,
352°
[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 4 Texas Notes
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