2000 vs. 2017 Population Growth and Change
Iowa Population Growth by County
2000 vs. 2017, Net Percent Change
Iowa Population Growth by County
Dallas County 2000 vs. 2017
Net Percent Change = 115.91%
Rank = #1
Pocahontas County 2000 vs. 2017
Net Percent Change = -16.62%
Rank = #99
Mahaska County 2000 vs. 2017
Net Percent Change = -0.11%
Rank = #36
With a spotlight on Mahaska County, the chart above displays the distribution of the net percent change of population across Iowa's 99 counties over the period 2000-2017.
Those counties whose population growth registered above the statewide average over this period realized an increase in their statewide share of population. Likewise, those counties whose population growth registered below the statewide average experienced a decline in their relative share of population statewide.
Statewide Snippets:
  • Over 2000-2017 population grew in thirty-five Iowa counties while declining in sixty-four.
  • Population growth in eleven counties outpaced the statewide average (7.97%), while growth in eighty-eight counties trailed.
  • At the extremes of the distribution, Dallas County posted the highest growth of population (115.91%), while Pocahontas County placed last by logging a -16.62% decline.
  • The spread in population growth between the highest (Dallas County, 115.91%) and lowest (Pocahontas County, -16.62%) over 2000-2017 equated to 132.54% ( = 115.91%-16.62%).
  • Population growth statewide is but a weighted metric that stems from each county's share of population statewide. On this point, as the largest county in Iowa, Polk County's net population growth over 2000-2017 of 104,499 made up 44.74% of the total net growth statewide (233,554):

Polk County: Percent Share of Iowa's
Population Growth, 2000-2017:

44.74% = (104,499 / 233,554) x 100
Mahaska County Snippets:
  • Over 2000-2017, Mahaska County posted a -0.11% net decline in population.
  • Mahaska County was joined by eighty-seven other counties whose population growth over 2000-2017 registered below the statewide average (7.97%).
  • Ranked #36 among Iowa's 99 counties, Mahaska County's population growth (-0.11%) trailed the statewide average of 7.97% by a 8.09% margin.
  • Mahaska County's net population growth (-0.11%, #36) over 2000-2017 registered just above that of Crawford County (-0.86%, #37) and just below that of Grundy County (0.01%, #35).
  • Mahaska County's share of population statewide slipped from 0.76% in 2000 to 0.70% in 2017, resulting in a share-shift of -0.06%.

Data Definition

Number of individuals (both civilian and military) who reside in an area as of July 1. BEA uses the Census Bureau's midyear population estimates.

United States. Bureau of Economic Analysis, Regional Income Division.
Regional Definitions. 2023. Web.
https://apps.bea.gov/regional/definitions/

Population Growth by County
2000 vs. 2017, Net Percent Change
Population Growth by County
View Distribution Totals as: Actual Percent
     
 
County Distribution of Population Growth, 2000 vs. 2017
More
than
30%
30%
to
20%
20%
to
10%
10%
to
0%
0%
to
-10%
-10%
to
-20%
-20%
to
-30%
-30%
or
Below
Total
2000 vs. 2017
2
3
4
26
45
19
0
0
99
 
     
Population by County, 2017
Population by County, 2017
Polk County 2017
Population = 480,126
Percent of State = 15.18%
Rank = #1
Adams County 2017
Population = 3,735
Percent of State = 0.12%
Rank = #99
Mahaska County 2017
Population = 22,274
Percent of State = 0.70%
Rank = #28
Again highlighting Mahaska County's position, the bar graph above displays the disposition by county of 2017 population statewide (3,162,621).

Interactive TableTip: Although the visual profile of the bar chart remains unchanged you may opt to display the actual total by using the "Select Indicator" options above the graph

Statewide Snippets:
  • Ranked #1, Polk County's 2017 population totaled 480,126, equating to 15.18% of the statewide total.
  • Ranked last (#99), Adams County's population of 3,735 in 2017 comprised just 0.12% of the total statewide. Adams County's population in 2017 equates to just 0.8% to that of Polk County's.
  • Polk County's 2017 population (480,126) exceeded the combined population (477,239) of Iowa's forty-eight smallest counties.
Mahaska County Snippets:
  • Mahaska County's population in 2017 ranked #28, amounting to 0.70% of the statewide total.
  • Mahaska County's population of 22,274 placed below that of Washington County's (22,616, #27), and just above that of Buena Vista County's (20,882, #29).
  • Mahaska County's population of 22,274 exceeds the combined total (20,283) of Iowa's four smallest counties.
Population by County, 2017
Population by County, 2017
View Distribution Totals as: Actual Percent
     
 
County Distribution of Population, 2017
More
than
125,000
125,000
to
100,000
100,000
to
75,000
75,000
to
50,000
50,000
to
25,000
25,000
or
Below
Total
2017
5
1
4
1
14
74
99
 
     

Interactive TableTip: To augment your analysis click on the column headers in the following table to rank and/or sort the data.

   
 
Iowa by County:
2000 vs. 2017
 
2000
 
2017
 
2000 - 2017
 
 
 
 
8,223
0.28
 
7,343
0.23
 
-10.70
-880
-0.38
 
4,476
0.15
 
3,735
0.12
 
-16.55
-741
-0.32
 
14,674
0.50
 
14,121
0.45
 
-3.77
-553
-0.24
 
13,696
0.47
 
12,268
0.39
 
-10.43
-1,428
-0.61
 
6,804
0.23
 
5,687
0.18
 
-16.42
-1,117
-0.48
 
25,326
0.86
 
25,749
0.81
 
1.67
423
0.18
 
128,019
4.37
 
132,473
4.19
 
3.48
4,454
1.91
 
26,251
0.90
 
26,804
0.85
 
2.11
553
0.24
 
23,312
0.80
 
24,637
0.78
 
5.68
1,325
0.57
 
21,064
0.72
 
20,647
0.65
 
-1.98
-417
-0.18
 
20,361
0.70
 
20,882
0.66
 
2.56
521
0.22
 
15,299
0.52
 
14,583
0.46
 
-4.68
-716
-0.31
 
11,088
0.38
 
10,032
0.32
 
-9.52
-1,056
-0.45
 
21,382
0.73
 
20,829
0.66
 
-2.59
-553
-0.24
 
14,675
0.50
 
13,369
0.42
 
-8.90
-1,306
-0.56
 
18,199
0.62
 
18,503
0.59
 
1.67
304
0.13
 
46,389
1.58
 
43,670
1.38
 
-5.86
-2,719
-1.16
 
13,019
0.44
 
11,634
0.37
 
-10.64
-1,385
-0.59
 
13,168
0.45
 
12,110
0.38
 
-8.03
-1,058
-0.45
 
9,194
0.31
 
9,662
0.31
 
5.09
468
0.20
 
17,360
0.59
 
16,412
0.52
 
-5.46
-948
-0.41
 
18,611
0.64
 
17,419
0.55
 
-6.40
-1,192
-0.51
 
50,120
1.71
 
46,965
1.49
 
-6.29
-3,155
-1.35
 
16,944
0.58
 
16,798
0.53
 
-0.86
-146
-0.06
 
41,446
1.41
 
89,487
2.83
 
115.91
48,041
20.57
 
8,544
0.29
 
9,014
0.29
 
5.50
470
0.20
 
8,645
0.30
 
7,843
0.25
 
-9.28
-802
-0.34
 
18,416
0.63
 
17,517
0.55
 
-4.88
-899
-0.38
 
42,253
1.44
 
39,506
1.25
 
-6.50
-2,747
-1.18
 
16,460
0.56
 
17,311
0.55
 
5.17
851
0.36
 
89,201
3.05
 
98,355
3.11
 
10.26
9,154
3.92
 
10,995
0.38
 
9,605
0.30
 
-12.64
-1,390
-0.60
 
22,022
0.75
 
19,790
0.63
 
-10.14
-2,232
-0.96
 
16,854
0.58
 
15,837
0.50
 
-6.03
-1,017
-0.44
 
10,679
0.36
 
10,163
0.32
 
-4.83
-516
-0.22
 
7,995
0.27
 
6,806
0.22
 
-14.87
-1,189
-0.51
 
10,341
0.35
 
8,928
0.28
 
-13.66
-1,413
-0.60
 
12,368
0.42
 
12,369
0.39
 
0.01
1
0.00
 
11,334
0.39
 
10,569
0.33
 
-6.75
-765
-0.33
 
16,423
0.56
 
15,260
0.48
 
-7.08
-1,163
-0.50
 
12,109
0.41
 
10,947
0.35
 
-9.60
-1,162
-0.50
 
18,807
0.64
 
17,262
0.55
 
-8.22
-1,545
-0.66
 
15,685
0.54
 
14,562
0.46
 
-7.16
-1,123
-0.48
 
20,341
0.69
 
20,577
0.65
 
1.16
236
0.10
 
9,934
0.34
 
9,459
0.30
 
-4.78
-475
-0.20
 
10,377
0.35
 
9,659
0.31
 
-6.92
-718
-0.31
 
7,804
0.27
 
6,990
0.22
 
-10.43
-814
-0.35
 
15,729
0.54
 
16,527
0.52
 
5.07
798
0.34
 
20,297
0.69
 
19,550
0.62
 
-3.68
-747
-0.32
 
37,252
1.27
 
37,472
1.18
 
0.59
220
0.09
 
16,189
0.55
 
16,196
0.51
 
0.04
7
0.00
 
111,455
3.81
 
149,246
4.72
 
33.91
37,791
16.18
 
20,259
0.69
 
20,640
0.65
 
1.88
381
0.16
 
11,418
0.39
 
10,084
0.32
 
-11.68
-1,334
-0.57
 
17,206
0.59
 
15,017
0.47
 
-12.72
-2,189
-0.94
 
37,931
1.29
 
34,277
1.08
 
-9.63
-3,654
-1.56
 
192,365
6.57
 
226,326
7.16
 
17.65
33,961
14.54
 
12,174
0.42
 
11,060
0.35
 
-9.15
-1,114
-0.48
 
9,369
0.32
 
8,610
0.27
 
-8.10
-759
-0.32
 
11,748
0.40
 
11,910
0.38
 
1.38
162
0.07
 
14,049
0.48
 
16,084
0.51
 
14.49
2,035
0.87
 
22,299
0.76
 
22,274
0.70
 
-0.11
-25
-0.01
 
32,104
1.10
 
33,268
1.05
 
3.63
1,164
0.50
 
39,356
1.34
 
40,472
1.28
 
2.84
1,116
0.48
 
14,554
0.50
 
14,805
0.47
 
1.72
251
0.11
 
10,868
0.37
 
10,502
0.33
 
-3.37
-366
-0.16
 
10,009
0.34
 
8,828
0.28
 
-11.80
-1,181
-0.51
 
8,005
0.27
 
7,651
0.24
 
-4.42
-354
-0.15
 
11,793
0.40
 
10,409
0.33
 
-11.74
-1,384
-0.59
 
41,791
1.43
 
43,355
1.37
 
3.74
1,564
0.67
 
15,067
0.51
 
14,120
0.45
 
-6.29
-947
-0.41
 
6,985
0.24
 
6,170
0.20
 
-11.67
-815
-0.35
 
16,939
0.58
 
15,337
0.48
 
-9.46
-1,602
-0.69
 
10,135
0.35
 
9,133
0.29
 
-9.89
-1,002
-0.43
 
24,870
0.85
 
25,388
0.80
 
2.08
518
0.22
 
8,602
0.29
 
7,172
0.23
 
-16.62
-1,430
-0.61
 
375,627
12.82
 
480,126
15.18
 
27.82
104,499
44.74
 
88,022
3.01
 
93,767
2.96
 
6.53
5,745
2.46
 
18,903
0.65
 
18,552
0.59
 
-1.86
-351
-0.15
 
5,465
0.19
 
4,910
0.16
 
-10.16
-555
-0.24
 
11,481
0.39
 
9,936
0.31
 
-13.46
-1,545
-0.66
 
158,614
5.42
 
173,661
5.49
 
9.49
15,047
6.44
 
13,031
0.44
 
11,781
0.37
 
-9.59
-1,250
-0.54
 
31,609
1.08
 
35,377
1.12
 
11.92
3,768
1.61
 
80,152
2.74
 
97,642
3.09
 
21.82
17,490
7.49
 
18,084
0.62
 
17,241
0.55
 
-4.66
-843
-0.36
 
6,976
0.24
 
5,951
0.19
 
-14.69
-1,025
-0.44
 
12,281
0.42
 
12,433
0.39
 
1.24
152
0.07
 
7,793
0.27
 
7,254
0.23
 
-6.92
-539
-0.23
 
36,007
1.23
 
35,310
1.12
 
-1.94
-697
-0.30
 
40,787
1.39
 
50,300
1.59
 
23.32
9,513
4.07
 
20,718
0.71
 
22,616
0.72
 
9.16
1,898
0.81
 
6,728
0.23
 
6,558
0.21
 
-2.53
-170
-0.07
 
40,234
1.37
 
37,399
1.18
 
-7.05
-2,835
-1.21
 
11,778
0.40
 
10,857
0.34
 
-7.82
-921
-0.39
 
21,265
0.73
 
20,270
0.64
 
-4.68
-995
-0.43
 
103,786
3.54
 
104,019
3.29
 
0.22
233
0.10
 
7,894
0.27
 
7,506
0.24
 
-4.92
-388
-0.17
 
14,327
0.49
 
13,124
0.41
 
-8.40
-1,203
-0.52
 
 
 
 
 
 
 
 
 
 
 
 
2,929,067
100.00
 
3,162,621
100.00
 
7.97
233,554
100.00
 
1,630,582
55.67
 
1,921,709
60.76
 
17.85
291,127
124.65
 
1,298,485
44.33
 
1,240,912
39.24
 
-4.43
-57,573
-24.65
 
 
 
 
 
 
 
 
 
 
 
 
282,162,411
 
326,623,063
 
15.76
44,460,652
 
237,948,237
 
281,262,885
 
18.20
43,314,648
 
44,214,174
 
45,360,178
 
2.59
1,146,004
Source: Calculations by the Iowa Regional Economic Analysis Project (IA-REAP)
with data provided by the U.S. Department of Commerce, Bureau of Economic Analysis
November 2023
REAP_PI_CA1400_YRVYR_100A
 
   
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