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Date: 3/22/2018
Information Contact 1: Janell Hyer : (208) 332-3570 ext. 3220 : 
Information Contact 2: Salvador Vazquez : (208) 332-3570 ext. 3218 :

Idaho’s Larger Counties Continue to Add Population in 2017

The steady shift of Idaho’s population from rural to urban counties continued between July 1, 2016 and July 1, 2017, according to estimates released Thursday by the U.S. Census Bureau.

Six urban counties – Ada, Canyon, Kootenai, Bonneville, Bannock and Twin Falls – had a combined population of 1,116,173, accounting for 75 percent of the growth in the state’s population and 65 percent of overall population. The state’s total population was estimated at 1,716,943.

Adams had the highest percentage gain at 5 percent, but less than 200 new people. Fifteen counties had a percent increase larger than the state’s 2.2 percent gain. Clark County’s population increased at the same rate as the state. Forty-two counties showed population increases ranging from 12,580 people in Ada County to 18 additional people for Camas County. Six counties reported growth in excess of 1,000 – Ada (12,580), Canyon (5,588), Kootenai (4,493), Bonneville (2,570), Twin Falls (1,588) and Bonner (1,217).

Two counties experienced a decrease in population – Clearwater’s population decreased by nine people and Power’s population dropped by 61 people.

Population estimates show the net migration in Idaho was 26,525, or 1.5 percent of total population. Nearly 93 percent of the state’s population growth was due to people moving into the state. More people moved into 40 of Idaho counties than moved out, adding 27,334 people. The increase from net migration ranged from 10,268 in Ada County to 11 in Cassia County. Four counties – Gooding, Madison, Minidoka and Power - experienced losses in net migration – 809 more people left than moved in. The 12 counties that make up Idaho’s five Metropolitan Statistical Areas accounted for 60 percent of the state’s net migration.

Births and deaths are two other major components in population changes, commonly referred to as natural increases. Statewide there were 22,981 births between July 1, 2016, and July 1, 2017, and 12,653 deaths resulting in a gain of 10,328 people. Ada County reported the largest number of births - 5,170 - and deaths - 2,899 - for a net gain of 2,271 people.

Clark County experienced the smallest number of births, numbering eight with the fewest deaths at two. Three Idaho counties had a natural increase (births minus deaths) of more than 1,000 – Ada (2,271), Canyon (1,763), and Bonneville (1,147). Seven counties experienced net losses – Lemhi (4), Benewah (7), Bonner (7), Idaho (11), Boise (12), Shoshone (19) and Clearwater (37).

Idaho 2017 Population Components

By County

Population Estimate 2017

# Chg Pop 7/2016-7/2017

% Chg Pop 7/2016-7/2017

Births 7/1/16-6/30/17

Deaths 7/1/16-6/30/17

Net Migration 7/1/16-6/30/17

% of Net Migration To Population

Idaho

1,716,943

36,917

2.2%

22,981

12,653

26,525

1.5%

Ada

456,849

12,580

2.8%

5,170

2,899

10,268

2.2%

Adams

4,147

198

5.0%

30

24

191

4.6%

Bannock

85,269

890

1.1%

1,210

662

344

0.4%

Bear Lake

6,028

86

1.4%

80

59

66

1.1%

Benewah

9,184

162

1.8%

106

113

168

1.8%

Bingham

45,927

672

1.5%

702

363

337

0.7%

Blaine

22,024

283

1.3%

222

104

164

0.7%

Boise

7,290

202

2.8%

42

54

212

2.9%

Bonner

43,560

1,217

2.9%

415

422

1,222

2.8%

Bonneville

114,595

2,570

2.3%

1,975

828

1,422

1.2%

Boundary

11,922

272

2.3%

161

126

237

2.0%

Butte

2,602

29

1.1%

29

15

15

0.6%

Camas

1,102

18

1.7%

10

5

13

1.2%

Canyon

216,699

5,588

2.6%

3,206

1,443

3,808

1.8%

Caribou

7,034

128

1.9%

87

61

103

1.5%

Cassia

23,664

202

0.9%

365

173

11

0.0%

Clark

873

19

2.2%

8

2

13

1.5%

Clearwater

8,546

-9

-0.1%

62

99

28

0.3%

Custer

4,172

63

1.5%

39

29

53

1.3%

Elmore

26,823

733

2.8%

448

185

468

1.7%

Franklin

13,564

217

1.6%

214

86

92

0.7%

Fremont

13,094

206

1.6%

177

98

128

1.0%

Gem

17,379

400

2.4%

220

194

373

2.1%

Gooding

15,124

30

0.2%

211

124

-57

-0.4%

Idaho

16,369

141

0.9%

160

171

154

0.9%

Jefferson

28,446

639

2.3%

477

154

316

1.1%

Jerome

23,627

370

1.6%

418

161

113

0.5%

Kootenai

157,637

4,493

2.9%

1,856

1,388

4,010

2.5%

Latah

39,333

541

1.4%

453

225

312

0.8%

Lemhi

7,875

143

1.8%

82

86

148

1.9%

Lewis

3,887

44

1.1%

41

35

38

1.0%

Lincoln

5,318

51

1.0%

69

30

14

0.3%

Madison

39,141

360

0.9%

1,092

111

-618

-1.6%

Minidoka

20,729

146

0.7%

307

151

-10

0.0%

Nez Perce

40,385

289

0.7%

488

461

264

0.7%

Oneida

4,427

106

2.5%

53

29

81

1.8%

Owyhee

11,628

265

2.3%

136

89

219

1.9%

Payette

23,215

295

1.3%

286

193

202

0.9%

Power

7,600

-61

-0.8%

125

63

-124

-1.6%

Shoshone

12,542

129

1.0%

155

174

148

1.2%

Teton

11,381

295

2.7%

164

41

170

1.5%

Twin Falls

85,124

1,588

1.9%

1,219

755

1,125

1.3%

Valley

10,687

270

2.6%

96

79

252

2.4%

Washington

10,121

57

0.6%

115

89

32

0.3%

SOURCE: U.S. Census Bureau, March 22, 2018



       

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