Last official estimated population of Oldham County was 2,050 (year 2014)[1]. This was 0.001% of total US population and 0% of total Texas state population. Area of Oldham County is 1,501.4 mi² (=3888.7 km²), in this year population density was 1.37 p/mi². If population growth rate would be same as in period 2010-2014 (-0.02%/yr), Oldham County population in 2026 would be 2,044 [0].
Historical population of Oldham 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] -0.61 %/yr
[1890-1900] +2.6 %/yr
[1900-1910] +8.81 %/yr
[1910-1920] -1.35 %/yr
[1920-1930] +7.07 %/yr
[1930-1940] -0.14 %/yr
[1940-1950] +1.9 %/yr
[1950-1960] +1.43 %/yr
[1960-1970] +1.59 %/yr
[1970-1980] +0.11 %/yr
[1980-1990] -0.02 %/yr
[1990-2000] -0.43 %/yr
[2000-2005] -1.64 %/yr
[2005-2010] +0.41 %/yr
[2010-2014] -0.02 %/yr
Looking for settlements in Oldham County? Visit this page: Settlements in Oldham County, TX
Population of Oldham County by age groups male (M) and female (F)[1b]
| Age Gr. | (M) | (F) | Total |
| 0 to 4 | 34 | 49 | 83 |
| 5 to 9 | 51 | 44 | 95 |
| 10 to 14 | 135 | 87 | 222 |
| 15 to 19 | 162 | 87 | 249 |
| 20 to 24 | 33 | 41 | 74 |
| 25 to 29 | 45 | 50 | 95 |
| 30 to 34 | 63 | 81 | 144 |
| 35 to 39 | 64 | 57 | 121 |
| 40 to 44 | 72 | 73 | 145 |
| 45 to 49 | 45 | 72 | 117 |
| 50 to 54 | 90 | 69 | 159 |
| 55 to 59 | 81 | 86 | 167 |
| 60 to 64 | 53 | 58 | 111 |
| 65 to 69 | 54 | 47 | 101 |
| 70 to 74 | 29 | 37 | 66 |
| 75 to 79 | 25 | 34 | 59 |
| 80 to 84 | 12 | 22 | 34 |
| 85+ | 10 | 18 | 28 |
Oldham 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 | 998 | 946 | 1,944 |
| WA | 982 | 928 | 1,910 |
| NH | 899 | 868 | 1,767 |
| NHWAC | 848 | 807 | 1,655 |
| NHWA | 838 | 790 | 1,628 |
| H | 159 | 144 | 303 |
| HWAC | 150 | 139 | 289 |
| HWA | 144 | 138 | 282 |
| BAC | 45 | 44 | 89 |
| NHBAC | 40 | 41 | 81 |
| BA | 39 | 36 | 75 |
| NHBA | 35 | 33 | 68 |
| IAC | 22 | 18 | 40 |
| TOM | 18 | 20 | 38 |
| AAC | 10 | 22 | 32 |
| NHTOM | 11 | 19 | 30 |
| NHAAC | 8 | 22 | 30 |
| NHIAC | 14 | 15 | 29 |
| AA | 7 | 17 | 24 |
| NHAA | 7 | 17 | 24 |
| IA | 12 | 10 | 22 |
| NHIA | 8 | 8 | 16 |
| HIAC | 8 | 3 | 11 |
| HTOM | 7 | 1 | 8 |
| HBAC | 5 | 3 | 8 |
| HBA | 4 | 3 | 7 |
| HIA | 4 | 2 | 6 |
| NAC | 1 | 3 | 4 |
| NHNAC | 0 | 3 | 3 |
| HAAC | 2 | 0 | 2 |
| HNAC | 1 | 0 | 1 |
| NHNA | 0 | 1 | 1 |
| NA | 0 | 1 | 1 |
| HNA | 0 | 0 | 0 |
| HAA | 0 | 0 | 0 |
• Potter County population
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90°
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49.9 mi,
127°
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49.8 mi,
52°
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31.9 mi,
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• Parmer County
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• Quay County
57.4 mi,
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• Castro County
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• Dallam County
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• Carson County
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• Hartley County
30.3 mi,
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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
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