Last official estimated population of Cerro Gordo County was 44,100 (year 2014)[1]. This was 0.014% of total US population and 1.4% of total Iowa state population. Area of Cerro Gordo County is 575.1 mi² (=1489.6 km²), in this year population density was 76.68 p/mi². If population growth rate would be same as in period 2010-2014 (-0.03%/yr), Cerro Gordo County population in 2026 would be 43,947 [0].
Historical population of Cerro Gordo 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] +17.52 %/yr
[1870-1880] +9.27 %/yr
[1880-1890] +2.63 %/yr
[1890-1900] +3.35 %/yr
[1900-1910] +1.92 %/yr
[1910-1920] +3.32 %/yr
[1920-1930] +1.05 %/yr
[1930-1940] +1.31 %/yr
[1940-1950] +0.49 %/yr
[1950-1960] +0.8 %/yr
[1960-1970] -0.11 %/yr
[1970-1980] -0.18 %/yr
[1980-1990] -0.36 %/yr
[1990-2000] -0.06 %/yr
[2000-2005] -0.75 %/yr
[2005-2010] -0.27 %/yr
[2010-2014] -0.03 %/yr
Looking for settlements in Cerro Gordo County? Visit this page: Settlements in Cerro Gordo County, IA
Population of Cerro Gordo County by age groups male (M) and female (F)[1b]
| Age Gr. | (M) | (F) | Total |
| 0 to 4 | 1236 | 1166 | 2,402 |
| 5 to 9 | 1270 | 1182 | 2,452 |
| 10 to 14 | 1323 | 1130 | 2,453 |
| 15 to 19 | 1322 | 1269 | 2,591 |
| 20 to 24 | 1366 | 1259 | 2,625 |
| 25 to 29 | 1169 | 1120 | 2,289 |
| 30 to 34 | 1329 | 1213 | 2,542 |
| 35 to 39 | 1150 | 1143 | 2,293 |
| 40 to 44 | 1137 | 1171 | 2,308 |
| 45 to 49 | 1291 | 1317 | 2,608 |
| 50 to 54 | 1670 | 1737 | 3,407 |
| 55 to 59 | 1707 | 1796 | 3,503 |
| 60 to 64 | 1628 | 1615 | 3,243 |
| 65 to 69 | 1148 | 1346 | 2,494 |
| 70 to 74 | 837 | 985 | 1,822 |
| 75 to 79 | 670 | 857 | 1,527 |
| 80 to 84 | 475 | 729 | 1,204 |
| 85+ | 485 | 1006 | 1,491 |
Cerro Gordo 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 | 20510 | 21487 | 41,997 |
| WA | 20192 | 21184 | 41,376 |
| NH | 20176 | 21197 | 41,373 |
| NHWAC | 19526 | 20687 | 40,213 |
| NHWA | 19236 | 20406 | 39,642 |
| H | 1037 | 844 | 1,881 |
| HWAC | 984 | 800 | 1,784 |
| HWA | 956 | 778 | 1,734 |
| BAC | 563 | 412 | 975 |
| NHBAC | 530 | 381 | 911 |
| TOM | 329 | 322 | 651 |
| AAC | 308 | 322 | 630 |
| NHAAC | 298 | 316 | 614 |
| BA | 381 | 227 | 608 |
| NHTOM | 301 | 297 | 598 |
| NHBA | 358 | 210 | 568 |
| AA | 236 | 247 | 483 |
| NHAA | 228 | 245 | 473 |
| IAC | 146 | 139 | 285 |
| NHIAC | 111 | 100 | 211 |
| IA | 59 | 57 | 116 |
| NHIA | 40 | 35 | 75 |
| HIAC | 35 | 39 | 74 |
| HBAC | 33 | 31 | 64 |
| HTOM | 28 | 25 | 53 |
| NAC | 29 | 17 | 46 |
| HIA | 19 | 22 | 41 |
| NHNAC | 26 | 14 | 40 |
| HBA | 23 | 17 | 40 |
| NA | 16 | 4 | 20 |
| NHNA | 13 | 4 | 17 |
| HAAC | 10 | 6 | 16 |
| HAA | 8 | 2 | 10 |
| HNAC | 3 | 3 | 6 |
| HNA | 3 | 0 | 3 |
• Freeborn County population
41.7 mi,
353°
• Floyd County
23.5 mi,
93°
• Butler County
33.5 mi,
134°
• Wright County
34 mi,
226°
• Chickasaw County
47.1 mi,
91°
• Hancock County
24.9 mi,
270°
• Winnebago County
32.5 mi,
310°
• Mitchell County
30.2 mi,
51°
• Franklin County
23.4 mi,
182°
• Worth County
20.6 mi,
0°
[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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