Last official estimated population of Iron County was 10,601 (year 2014)[1]. This was 0.003% of total US population and 0.2% of total Missouri state population. Area of Iron County is 552.1 mi² (=1429.8 km²), in this year population density was 19.20 p/mi². If population growth rate would be same as in period 2010-2014 (-0.07%/yr), Iron County population in 2026 would be 10,514 [0].
Historical population of Iron 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] +0.72 %/yr
[1870-1880] +2.69 %/yr
[1880-1890] +1.09 %/yr
[1890-1900] -0.45 %/yr
[1900-1910] -0.18 %/yr
[1910-1920] +1 %/yr
[1920-1930] +0.19 %/yr
[1930-1940] +0.8 %/yr
[1940-1950] -0.98 %/yr
[1950-1960] -1.61 %/yr
[1960-1970] +1.71 %/yr
[1970-1980] +1.52 %/yr
[1980-1990] -0.33 %/yr
[1990-2000] -0.05 %/yr
[2000-2005] -0.09 %/yr
[2005-2010] 0 %/yr
[2010-2014] -0.07 %/yr
Looking for settlements in Iron County? Visit this page: Settlements in Iron County, MO
Population of Iron County by age groups male (M) and female (F)[1b]
| Age Gr. | (M) | (F) | Total |
| 0 to 4 | 307 | 305 | 612 |
| 5 to 9 | 290 | 326 | 616 |
| 10 to 14 | 343 | 288 | 631 |
| 15 to 19 | 286 | 295 | 581 |
| 20 to 24 | 288 | 254 | 542 |
| 25 to 29 | 273 | 250 | 523 |
| 30 to 34 | 271 | 299 | 570 |
| 35 to 39 | 295 | 303 | 598 |
| 40 to 44 | 331 | 310 | 641 |
| 45 to 49 | 336 | 332 | 668 |
| 50 to 54 | 399 | 383 | 782 |
| 55 to 59 | 404 | 413 | 817 |
| 60 to 64 | 373 | 391 | 764 |
| 65 to 69 | 296 | 315 | 611 |
| 70 to 74 | 240 | 275 | 515 |
| 75 to 79 | 163 | 188 | 351 |
| 80 to 84 | 107 | 143 | 250 |
| 85+ | 63 | 132 | 195 |
Iron 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 |
| NH | 4975 | 5120 | 10,095 |
| WAC | 4930 | 5078 | 10,008 |
| NHWAC | 4846 | 5000 | 9,846 |
| WA | 4837 | 4988 | 9,825 |
| NHWA | 4758 | 4915 | 9,673 |
| BAC | 108 | 105 | 213 |
| NHBAC | 103 | 102 | 205 |
| IAC | 98 | 91 | 189 |
| TOM | 96 | 92 | 188 |
| NHIAC | 93 | 86 | 179 |
| NHTOM | 91 | 87 | 178 |
| H | 90 | 82 | 172 |
| BA | 85 | 80 | 165 |
| HWAC | 84 | 78 | 162 |
| NHBA | 81 | 77 | 158 |
| HWA | 79 | 73 | 152 |
| IA | 41 | 34 | 75 |
| NHIA | 39 | 33 | 72 |
| AAC | 20 | 19 | 39 |
| NHAAC | 19 | 18 | 37 |
| AA | 6 | 8 | 14 |
| NHAA | 6 | 8 | 14 |
| HTOM | 5 | 5 | 10 |
| HIAC | 5 | 5 | 10 |
| NHNAC | 5 | 3 | 8 |
| NAC | 5 | 3 | 8 |
| HBAC | 5 | 3 | 8 |
| HBA | 4 | 3 | 7 |
| HIA | 2 | 1 | 3 |
| HAAC | 1 | 1 | 2 |
| HNAC | 0 | 0 | 0 |
| NA | 0 | 0 | 0 |
| NHNA | 0 | 0 | 0 |
| HAA | 0 | 0 | 0 |
| HNA | 0 | 0 | 0 |
• Jefferson County population
44.5 mi, 
11°
• St. Francois County
17.8 mi, 
44°
• Washington County
24.4 mi, 
333°
• Crawford County
41 mi, 
305°
• Ste. Genevieve County
34.4 mi, 
58°
• Dent County
43.3 mi, 
267°
• Wayne County
38 mi, 
159°
• Bollinger County
42.7 mi, 
119°
• Madison County
22.1 mi, 118°
• Reynolds County
23.5 mi, 
218°
[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 Missouri Notes
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