Last official estimated population of Buffalo County was 46,174 (year 2014)[1]. This was 0.014% of total US population and 2.4% of total Nebraska state population. Area of Buffalo County is 975.4 mi² (=2526.3 km²), in this year population density was 47.34 p/mi². If population growth rate would be same as in period 2010-2014 (+0.04%/yr), Buffalo County population in 2026 would be 46,391 [0].
Historical population of Buffalo 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] +5.41 %/yr
[1870-1880] +44.25 %/yr
[1880-1890] +11.4 %/yr
[1890-1900] -0.9 %/yr
[1900-1910] +0.79 %/yr
[1910-1920] +0.83 %/yr
[1920-1930] +0.23 %/yr
[1930-1940] -0.28 %/yr
[1940-1950] +0.61 %/yr
[1950-1960] +0.43 %/yr
[1960-1970] +1.76 %/yr
[1970-1980] +1.09 %/yr
[1980-1990] +0.74 %/yr
[1990-2000] +1.21 %/yr
[2000-2005] +0.88 %/yr
[2005-2010] +0.88 %/yr
[2010-2014] +0.04 %/yr
Looking for settlements in Buffalo County? Visit this page: Settlements in Buffalo County, NE
Population of Buffalo County by age groups male (M) and female (F)[1b]
| Age Gr. | (M) | (F) | Total |
| 0 to 4 | 1704 | 1657 | 3,361 |
| 5 to 9 | 1617 | 1557 | 3,174 |
| 10 to 14 | 1571 | 1403 | 2,974 |
| 15 to 19 | 1952 | 1850 | 3,802 |
| 20 to 24 | 2852 | 2808 | 5,660 |
| 25 to 29 | 1814 | 1608 | 3,422 |
| 30 to 34 | 1713 | 1583 | 3,296 |
| 35 to 39 | 1457 | 1452 | 2,909 |
| 40 to 44 | 1279 | 1261 | 2,540 |
| 45 to 49 | 1226 | 1222 | 2,448 |
| 50 to 54 | 1423 | 1457 | 2,880 |
| 55 to 59 | 1411 | 1503 | 2,914 |
| 60 to 64 | 1278 | 1345 | 2,623 |
| 65 to 69 | 932 | 1032 | 1,964 |
| 70 to 74 | 638 | 730 | 1,368 |
| 75 to 79 | 444 | 587 | 1,031 |
| 80 to 84 | 327 | 518 | 845 |
| 85+ | 320 | 693 | 1,013 |
Buffalo 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 | 22997 | 23585 | 46,582 |
| WA | 22680 | 23316 | 45,996 |
| NH | 21832 | 22265 | 44,097 |
| NHWAC | 20984 | 21710 | 42,694 |
| NHWA | 20724 | 21492 | 42,216 |
| H | 2126 | 2001 | 4,127 |
| HWAC | 2013 | 1875 | 3,888 |
| HWA | 1956 | 1824 | 3,780 |
| AAC | 516 | 390 | 906 |
| NHAAC | 497 | 377 | 874 |
| BAC | 509 | 307 | 816 |
| AA | 447 | 329 | 776 |
| NHAA | 436 | 323 | 759 |
| NHBAC | 453 | 262 | 715 |
| TOM | 331 | 286 | 617 |
| BA | 365 | 183 | 548 |
| NHTOM | 273 | 233 | 506 |
| NHBA | 331 | 156 | 487 |
| IAC | 243 | 219 | 462 |
| NHIAC | 161 | 135 | 296 |
| IA | 117 | 113 | 230 |
| HIAC | 82 | 84 | 166 |
| NHIA | 65 | 59 | 124 |
| HTOM | 58 | 53 | 111 |
| HIA | 52 | 54 | 106 |
| HBAC | 56 | 45 | 101 |
| NAC | 30 | 56 | 86 |
| HBA | 34 | 27 | 61 |
| NA | 18 | 39 | 57 |
| HNAC | 16 | 39 | 55 |
| HNA | 15 | 37 | 52 |
| HAAC | 19 | 13 | 32 |
| NHNAC | 14 | 17 | 31 |
| HAA | 11 | 6 | 17 |
| NHNA | 3 | 2 | 5 |
• Hall County population
29.9 mi, 
88°
• Adams County
38 mi, 
127°
• Dawson County
38.7 mi, 
271°
• Phelps County
29.2 mi, 
216°
• Kearney County
24.8 mi, 
164°
• Howard County
38.5 mi, 
49°
• Valley County
49.2 mi, 
5°
• Franklin County
46.8 mi, 
172°
• Sherman County
25.7 mi, 11°
• Gosper County
45.9 mi, 
238°
[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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