Last official estimated population of Latah County was 37,274 (year 2014)[1]. This was 0.012% of total US population and 2.3% of total Idaho state population. Area of Latah County is 1,076.9 mi² (=2789.2 km²), in this year population density was 34.61 p/mi². If population growth rate would be same as in period 2010-2014 (+0.02%/yr), Latah County population in 2024 would be 37,349 [0].
Historical population of Latah County for period 1890-2014 [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
[1890-1900] +3.9 %/yr
[1900-1910] +3.41 %/yr
[1910-1920] -0.39 %/yr
[1920-1930] -0.16 %/yr
[1930-1940] +0.55 %/yr
[1940-1950] +1.1 %/yr
[1950-1960] +0.09 %/yr
[1960-1970] +1.63 %/yr
[1970-1980] +1.45 %/yr
[1980-1990] +0.63 %/yr
[1990-2000] +1.33 %/yr
[2000-2005] +0.58 %/yr
[2005-2010] +0.71 %/yr
[2010-2014] +0.02 %/yr
Looking for settlements in Latah County? Visit this page: Settlements in Latah County, ID
Population of Latah County by age groups male (M) and female (F)[1b]
| Age Gr. | (M) | (F) | Total |
| 0 to 4 | 1161 | 1072 | 2,233 |
| 5 to 9 | 963 | 960 | 1,923 |
| 10 to 14 | 952 | 874 | 1,826 |
| 15 to 19 | 1950 | 1843 | 3,793 |
| 20 to 24 | 3951 | 3192 | 7,143 |
| 25 to 29 | 1619 | 1369 | 2,988 |
| 30 to 34 | 1231 | 1147 | 2,378 |
| 35 to 39 | 987 | 880 | 1,867 |
| 40 to 44 | 933 | 907 | 1,840 |
| 45 to 49 | 903 | 850 | 1,753 |
| 50 to 54 | 980 | 1035 | 2,015 |
| 55 to 59 | 1011 | 1105 | 2,116 |
| 60 to 64 | 1009 | 990 | 1,999 |
| 65 to 69 | 796 | 750 | 1,546 |
| 70 to 74 | 541 | 587 | 1,128 |
| 75 to 79 | 380 | 355 | 735 |
| 80 to 84 | 233 | 313 | 546 |
| 85+ | 197 | 385 | 582 |
Latah 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 | 18894 | 17934 | 36,828 |
| NH | 18986 | 17831 | 36,817 |
| WA | 18382 | 17456 | 35,838 |
| NHWAC | 18181 | 17208 | 35,389 |
| NHWA | 17711 | 16791 | 34,502 |
| H | 811 | 783 | 1,594 |
| HWAC | 713 | 726 | 1,439 |
| HWA | 671 | 665 | 1,336 |
| AAC | 598 | 548 | 1,146 |
| NHAAC | 582 | 530 | 1,112 |
| TOM | 536 | 492 | 1,028 |
| NHTOM | 491 | 427 | 918 |
| IAC | 415 | 355 | 770 |
| AA | 380 | 355 | 735 |
| NHAA | 374 | 352 | 726 |
| NHIAC | 340 | 296 | 636 |
| BAC | 382 | 224 | 606 |
| NHBAC | 329 | 190 | 519 |
| BA | 276 | 131 | 407 |
| NHBA | 236 | 112 | 348 |
| IA | 187 | 147 | 334 |
| NHIA | 140 | 128 | 268 |
| NAC | 78 | 68 | 146 |
| HIAC | 75 | 59 | 134 |
| NHNAC | 71 | 52 | 123 |
| HTOM | 45 | 65 | 110 |
| HBAC | 53 | 34 | 87 |
| NA | 36 | 33 | 69 |
| HIA | 47 | 19 | 66 |
| HBA | 40 | 19 | 59 |
| NHNA | 34 | 21 | 55 |
| HAAC | 16 | 18 | 34 |
| HNAC | 7 | 16 | 23 |
| HNA | 2 | 12 | 14 |
| HAA | 6 | 3 | 9 |
• Spokane County population
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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
*Nez Perce Idaho Notes
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