Population.us > Counties > Iowa > Grundy County

Population of Grundy County

Last official estimated population of Grundy County was 12,447 (year 2014)[1]. This was 0.004% of total US population and 0.4% of total Iowa state population. Area of Grundy County is 501.9 mi² (=1299.9 km²), in this year population density was 24.80 p/mi². If population growth rate would be same as in period 2010-2014 (-0.01%/yr), Grundy County population in 2024 would be 12,432 [0].


Historical population

Historical population of Grundy County for period 1860-2014 [1] , [2] , [3]:

Maps: Population, population density, population changes

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.

PopulationDensityChangesLegendsPosition

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Annual growth rate

[1860-1870] +23.22 %/yr
[1870-1880] +7.04 %/yr
[1880-1890] +0.45 %/yr
[1890-1900] +0.4 %/yr
[1900-1910] -0.13 %/yr
[1910-1920] +0.61 %/yr
[1920-1930] -0.2 %/yr
[1930-1940] -0.44 %/yr
[1940-1950] +0.15 %/yr
[1950-1960] +0.29 %/yr
[1960-1970] -0.01 %/yr
[1970-1980] +0.17 %/yr
[1980-1990] -1.76 %/yr
[1990-2000] +0.28 %/yr
[2000-2005] +0.06 %/yr
[2005-2010] +0.08 %/yr
[2010-2014] -0.01 %/yr

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Demography

Population of Grundy County by age groups male (M) and female (F)[1b]

Age Gr. (M) (F) Total
0 to 4 339 405 744
5 to 9 418 408 826
10 to 14 415 401 816
15 to 19 398 369 767
20 to 24 345 313 658
25 to 29 274 280 554
30 to 34 370 357 727
35 to 39 362 348 710
40 to 44 377 327 704
45 to 49 370 370 740
50 to 54 463 479 942
55 to 59 453 469 922
60 to 64 419 395 814
65 to 69 330 366 696
70 to 74 251 270 521
75 to 79 214 244 458
80 to 84 136 208 344
85+ 140 292 432

Grundy 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 6012 6247 12,259
NH 5990 6231 12,221
WA 5963 6198 12,161
NHWAC 5933 6182 12,115
NHWA 5886 6135 12,021
H 84 70 154
HWAC 79 65 144
HWA 77 63 140
BAC 59 48 107
NHBAC 56 44 100
TOM 49 51 100
NHTOM 47 49 96
AAC 26 32 58
BA 37 19 56
NHAAC 24 30 54
NHBA 34 15 49
AA 17 26 43
IAC 21 21 42
NHAA 16 25 41
NHIAC 20 20 40
NAC 5 6 11
NHNAC 4 6 10
NA 4 4 8
NHIA 4 3 7
IA 4 3 7
HBAC 3 4 7
HBA 3 4 7
NHNA 3 4 7
HTOM 2 2 4
HAAC 2 2 4
HIAC 1 1 2
HAA 1 1 2
HNAC 1 0 1
HNA 1 0 1
HIA 0 0 0

Counties near Grundy County

Black Hawk County population 25 mi, 79°
Story County 42.8 mi, 233°
Marshall County 26.8 mi, 201°
Benton County 43.2 mi, 119°
Bremer County 35.1 mi, 42°
Tama County 26.3 mi, 149°
Hardin County 23 mi, 267°
Floyd County 44.9 mi,
Butler County 22.9 mi,
Franklin County 33.6 mi, 313°


Sources, notices

[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

Iowa Notes

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