Last official estimated population of Steuben County was 34,135 (year 2014)[1]. This was 0.011% of total US population and 0.5% of total Indiana state population. Area of Steuben County is 322.5 mi² (=835.2 km²), in this year population density was 105.86 p/mi². If population growth rate would be same as in period 2010-2014 (-0.04%/yr), Steuben County population in 2025 would be 33,998 [0].
Historical population of Steuben County for period 1840-2014 [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

[1840-1850] +9 %/yr
[1850-1860] +5.45 %/yr
[1860-1870] +2.17 %/yr
[1870-1880] +1.31 %/yr
[1880-1890] -0.11 %/yr
[1890-1900] +0.5 %/yr
[1900-1910] -0.64 %/yr
[1910-1920] -0.66 %/yr
[1920-1930] +0.02 %/yr
[1930-1940] +0.26 %/yr
[1940-1950] +2.2 %/yr
[1950-1960] +0.06 %/yr
[1960-1970] +1.61 %/yr
[1970-1980] +2.05 %/yr
[1980-1990] +1.06 %/yr
[1990-2000] +1.93 %/yr
[2000-2005] +0.41 %/yr
[2005-2010] +0.15 %/yr
[2010-2014] -0.04 %/yr
Looking for settlements in Steuben County? Visit this page: Settlements in Steuben County, IN
Population of Steuben County by age groups male (M) and female (F)[1b]
| Age Gr. | (M) | (F) | Total |
| 0 to 4 | 868 | 821 | 1,689 |
| 5 to 9 | 999 | 979 | 1,978 |
| 10 to 14 | 1105 | 1117 | 2,222 |
| 15 to 19 | 1413 | 1151 | 2,564 |
| 20 to 24 | 1398 | 1114 | 2,512 |
| 25 to 29 | 943 | 872 | 1,815 |
| 30 to 34 | 916 | 851 | 1,767 |
| 35 to 39 | 896 | 897 | 1,793 |
| 40 to 44 | 1060 | 1033 | 2,093 |
| 45 to 49 | 1193 | 1137 | 2,330 |
| 50 to 54 | 1278 | 1256 | 2,534 |
| 55 to 59 | 1315 | 1285 | 2,600 |
| 60 to 64 | 1251 | 1249 | 2,500 |
| 65 to 69 | 998 | 1034 | 2,032 |
| 70 to 74 | 743 | 764 | 1,507 |
| 75 to 79 | 520 | 524 | 1,044 |
| 80 to 84 | 318 | 390 | 708 |
| 85+ | 181 | 439 | 620 |
Steuben 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 | 17034 | 16637 | 33,671 |
| WA | 16878 | 16477 | 33,355 |
| NH | 16799 | 16396 | 33,195 |
| NHWAC | 16487 | 16158 | 32,645 |
| NHWA | 16342 | 16014 | 32,356 |
| H | 596 | 517 | 1,113 |
| HWAC | 547 | 479 | 1,026 |
| HWA | 536 | 463 | 999 |
| BAC | 273 | 164 | 437 |
| NHBAC | 245 | 141 | 386 |
| TOM | 164 | 166 | 330 |
| NHTOM | 150 | 150 | 300 |
| BA | 198 | 99 | 297 |
| AAC | 140 | 149 | 289 |
| NHAAC | 133 | 145 | 278 |
| NHBA | 179 | 81 | 260 |
| IAC | 106 | 129 | 235 |
| AA | 96 | 103 | 199 |
| NHAA | 92 | 99 | 191 |
| NHIAC | 83 | 104 | 187 |
| IA | 50 | 63 | 113 |
| NHIA | 31 | 48 | 79 |
| HBAC | 28 | 23 | 51 |
| HIAC | 23 | 25 | 48 |
| HBA | 19 | 18 | 37 |
| HIA | 19 | 15 | 34 |
| HTOM | 14 | 16 | 30 |
| NAC | 15 | 9 | 24 |
| NA | 9 | 5 | 14 |
| NHNAC | 8 | 6 | 14 |
| HAAC | 7 | 4 | 11 |
| HNAC | 7 | 3 | 10 |
| NHNA | 5 | 4 | 9 |
| HAA | 4 | 4 | 8 |
| HNA | 4 | 1 | 5 |
• Allen County population
38.3 mi,
185°
• Calhoun County
41.4 mi,
359°
• St. Joseph County
32.6 mi,
304°
• Noble County
27.1 mi,
232°
• Hillsdale County
24 mi,
50°
• Branch County
19.3 mi,
350°
• DeKalb County
16.7 mi,
179°
• Defiance County
34.7 mi,
129°
• Williams County
22.3 mi,
104°
• LaGrange County
21.9 mi,
269°
[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
*Elkhart Indiana Notes
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