All counties →

Placer County, CA Demographics

Placer County, CA is the 22nd most populous of 58 counties in California, with 404,739 residents across 1,407 square miles. That is about 288 people per square mile.

At the 2020 census

Population 404,739
Land area 1,407 sq mi
Density 288 / sq mi

Data: 2020 Census · American Community Survey 2024

How Placer County compares to the US

We're computing this county's comparison table — check back shortly. Population, land area, and density above are already exact.

Central Location: Placer County, CA

Measured from the county's main population center using 2020 census blocks.

We're computing the drive-time and radius areas around Placer County, CA — check back shortly. Meanwhile you can drop a pin anywhere in the radius tool.

Census tracts in Placer County, CA

Name Population Sq mi Per sq mi
Census Tract 213.23 11,223 3.4 3,288
Census Tract 213.25 9,279 2.5 3,759
Census Tract 231 8,697 1.8 4,938
Census Tract 213.28 8,556 71.5 120
Census Tract 210.38 7,627 1.1 7,103
Census Tract 211.23 7,558 4.6 1,655
Census Tract 209.08 7,512 4.1 1,827
Census Tract 212.03 7,431 5.8 1,290
Census Tract 206.01 7,257 9.6 755
Census Tract 214.03 7,164 1.0 6,989
Census Tract 210.03 6,784 2.9 2,306
Census Tract 220.02 6,569 25.2 261
Census Tract 202 6,429 562.3 11
Census Tract 233 6,333 2.1 3,086
Census Tract 213.24 6,321 1.6 3,937
Census Tract 213.04 6,258 77.7 80
Census Tract 232 6,078 5.0 1,224
Census Tract 218.02 6,052 8.2 737
Census Tract 206.04 5,927 4.4 1,332
Census Tract 215.01 5,911 10.7 551
Census Tract 206.05 5,885 4.0 1,456
Census Tract 229 5,765 0.7 8,505
Census Tract 210.44 5,765 0.9 6,205
Census Tract 211.31 5,722 0.7 8,108
Census Tract 234 5,721 6.6 869
Census Tract 213.27 5,643 24.8 227
Census Tract 211.09 5,594 2.3 2,386
Census Tract 235.02 5,315 3.8 1,394
Census Tract 206.07 5,099 10.7 477
Census Tract 210.46 5,056 0.6 7,850
Census Tract 228 4,986 1.2 4,295
Census Tract 226 4,982 1.2 4,258
Census Tract 216.03 4,927 1.7 2,984
Census Tract 211.03 4,904 1.9 2,644
Census Tract 224 4,893 1.2 4,075
Census Tract 207.17 4,888 2.4 2,000
Census Tract 225 4,689 5.2 898
Census Tract 218.01 4,663 13.0 357
Census Tract 203 4,639 2.0 2,263
Census Tract 207.11 4,558 1.1 4,091
Census Tract 210.47 4,463 1.0 4,423
Census Tract 219.02 4,462 9.5 471
Census Tract 207.10 4,408 1.4 3,223
Census Tract 213.26 4,394 1.0 4,329
Census Tract 236 4,361 1.7 2,518
Census Tract 210.34 4,331 1.1 3,958
Census Tract 205.02 4,317 10.3 420
Census Tract 206.06 4,296 1.6 2,698
Census Tract 208.05 4,202 0.8 5,217
Census Tract 230 3,914 1.8 2,124
Census Tract 207.12 3,855 0.7 5,478
Census Tract 207.14 3,848 0.9 4,250
Census Tract 206.08 3,811 8.2 464
Census Tract 215.02 3,806 2.9 1,322
Census Tract 210.43 3,760 2.3 1,670
Census Tract 208.06 3,576 0.8 4,427
Census Tract 210.45 3,533 0.6 5,824
Census Tract 204.02 3,511 3.1 1,121
Census Tract 211.22 3,455 1.2 2,869
Census Tract 211.29 3,453 0.7 5,187
Census Tract 210.48 3,439 0.4 8,099
Census Tract 216.04 3,421 36.4 94
Census Tract 211.08 3,410 0.7 4,679
Census Tract 207.13 3,323 0.6 5,677
Census Tract 201.07 3,315 2.8 1,196
Census Tract 219.01 3,315 16.4 203
Census Tract 237 3,301 1.8 1,840
Census Tract 211.28 3,244 0.5 7,009
Census Tract 238 3,211 3.1 1,049
Census Tract 239 3,129 1.6 1,946
Census Tract 210.40 3,123 1.1 2,908
Census Tract 207.15 3,074 0.6 5,444
Census Tract 214.01 3,056 1.2 2,625
Census Tract 205.01 2,973 10.3 287
Census Tract 220.13 2,833 125.4 23
Census Tract 209.01 2,777 0.7 4,017
Census Tract 212.04 2,748 12.1 227
Census Tract 211.06 2,401 0.8 2,893
Census Tract 220.11 2,292 50.4 45
Census Tract 211.30 2,272 0.4 6,333
Census Tract 204.01 2,242 1.0 2,206
Census Tract 210.37 2,209 0.4 5,524
Census Tract 210.39 1,703 0.7 2,383
Census Tract 201.06 1,643 8.5 192
Census Tract 220.14 1,529 122.8 12
Census Tract 201.04 1,327 8.8 151
Census Tract 201.05 1,319 10.6 124
Census Tract 235.01 1,245 1.3 944
Census Tract 222 902 9.0 100
Census Tract 221 901 23.0 39
Census Tract 223 646 10.4 62
Census Tract 9900 0 0.0 —

Related places

About this page

This page shows demographics for a US county from the 2020 census and the American Community Survey: population, land area, density, urban share, and how the county compares to national averages for income, housing, age, and more.

Counties subdivide into census tracts, listed below with their populations. The drive-time and radius tables measure the population around the county's main population center.

Read how BlockAtlas computes population within an area →