Last official estimated population of Irwin County was 9,601 (year 2014)[1]. This was 0.003% of total US population and 0.1% of total Georgia state population. Area of Irwin County is 362.8 mi² (=939.6 km²), in this year population density was 26.47 p/mi². If population growth rate would be same as in period 2010-2014 (+0.16%/yr), Irwin County population in 2025 would be 9,776 [0].
Historical population of Irwin County for period 1820-2014 [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
[1820-1830] +11.12 %/yr
[1830-1840] +5.62 %/yr
[1840-1850] +5.05 %/yr
[1850-1860] -6.52 %/yr
[1860-1870] +0.78 %/yr
[1870-1880] +3.91 %/yr
[1880-1890] +8.89 %/yr
[1890-1900] +8.01 %/yr
[1900-1910] -2.62 %/yr
[1910-1920] +1.93 %/yr
[1920-1930] -0.38 %/yr
[1930-1940] +0.59 %/yr
[1940-1950] -0.77 %/yr
[1950-1960] -2.59 %/yr
[1960-1970] -1.36 %/yr
[1970-1980] +1.13 %/yr
[1980-1990] -0.38 %/yr
[1990-2000] +1.38 %/yr
[2000-2005] -0.28 %/yr
[2005-2010] -0.5 %/yr
[2010-2014] +0.16 %/yr
Looking for settlements in Irwin County? Visit this page: Settlements in Irwin County, GA
Population of Irwin County by age groups male (M) and female (F)[1b]
| Age Gr. | (M) | (F) | Total |
| 0 to 4 | 283 | 239 | 522 |
| 5 to 9 | 324 | 269 | 593 |
| 10 to 14 | 311 | 300 | 611 |
| 15 to 19 | 246 | 237 | 483 |
| 20 to 24 | 362 | 267 | 629 |
| 25 to 29 | 313 | 234 | 547 |
| 30 to 34 | 306 | 272 | 578 |
| 35 to 39 | 285 | 262 | 547 |
| 40 to 44 | 320 | 285 | 605 |
| 45 to 49 | 332 | 280 | 612 |
| 50 to 54 | 312 | 321 | 633 |
| 55 to 59 | 280 | 288 | 568 |
| 60 to 64 | 245 | 274 | 519 |
| 65 to 69 | 235 | 277 | 512 |
| 70 to 74 | 192 | 235 | 427 |
| 75 to 79 | 149 | 165 | 314 |
| 80 to 84 | 62 | 134 | 196 |
| 85+ | 69 | 139 | 208 |
Irwin 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 | 4441 | 4336 | 8,777 |
| WAC | 3302 | 3274 | 6,576 |
| WA | 3270 | 3217 | 6,487 |
| NHWAC | 3144 | 3156 | 6,300 |
| NHWA | 3118 | 3105 | 6,223 |
| BAC | 1298 | 1192 | 2,490 |
| NHBAC | 1280 | 1173 | 2,453 |
| BA | 1279 | 1152 | 2,431 |
| NHBA | 1262 | 1137 | 2,399 |
| H | 185 | 142 | 327 |
| HWAC | 158 | 118 | 276 |
| HWA | 152 | 112 | 264 |
| TOM | 38 | 61 | 99 |
| AAC | 42 | 49 | 91 |
| NHTOM | 31 | 54 | 85 |
| NHAAC | 35 | 45 | 80 |
| AA | 32 | 42 | 74 |
| NHAA | 28 | 39 | 67 |
| IAC | 21 | 23 | 44 |
| HBAC | 18 | 19 | 37 |
| HBA | 17 | 15 | 32 |
| NHIAC | 13 | 17 | 30 |
| HIAC | 8 | 6 | 14 |
| HTOM | 7 | 7 | 14 |
| IA | 7 | 5 | 12 |
| HAAC | 7 | 4 | 11 |
| HIA | 5 | 4 | 9 |
| HAA | 4 | 3 | 7 |
| NAC | 2 | 3 | 5 |
| NHIA | 2 | 1 | 3 |
| HNAC | 1 | 2 | 3 |
| NHNAC | 1 | 1 | 2 |
| HNA | 0 | 1 | 1 |
| NA | 0 | 1 | 1 |
| NHNA | 0 | 0 | 0 |
• Coffee County population
25.7 mi, 
98°
• Tift County
17.8 mi, 
235°
• Worth County
33.9 mi, 
263°
• Berrien County
22 mi, 
172°
• Ben Hill County
12.1 mi, 
38°
• Cook County
32.5 mi, 
196°
• Telfair County
29.5 mi, 43°
• Wilcox County
26.5 mi, 
339°
• Turner County
21.8 mi, 
292°
• Atkinson County
31.7 mi, 
132°
[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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