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Multnomah County, OR Demographics

Multnomah County, OR is the most populous of 36 counties in Oregon, with 815,428 residents across 431 square miles. That is about 1,892 people per square mile.

At the 2020 census

Population 815,428
Land area 431 sq mi
Density 1,892 / sq mi

Data: 2020 Census · American Community Survey 2024

How Multnomah 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: Multnomah County, OR

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

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

Census tracts in Multnomah County, OR

Name Population Sq mi Per sq mi
Census Tract 81 8,087 1.1 7,463
Census Tract 40.03 7,781 0.7 10,931
Census Tract 99.03 7,482 2.8 2,652
Census Tract 3.02 7,191 1.2 5,825
Census Tract 102 7,130 10.7 668
Census Tract 98.03 7,087 1.3 5,541
Census Tract 91.02 7,003 2.0 3,463
Census Tract 94 6,970 1.5 4,784
Census Tract 40.02 6,745 1.0 7,094
Census Tract 104.08 6,665 1.1 6,133
Census Tract 104.02 6,298 13.6 462
Census Tract 93.01 6,285 0.7 9,486
Census Tract 36.02 6,284 0.9 7,363
Census Tract 65.01 6,262 1.4 4,457
Census Tract 64.02 6,237 2.3 2,725
Census Tract 16.01 6,234 1.1 5,631
Census Tract 104.05 6,188 0.8 7,530
Census Tract 100.01 6,110 1.1 5,495
Census Tract 104.07 6,060 1.6 3,693
Census Tract 91.01 5,977 0.6 9,729
Census Tract 6.01 5,843 0.8 7,443
Census Tract 6.02 5,756 0.6 8,986
Census Tract 97.01 5,745 0.7 8,166
Census Tract 103.03 5,717 2.1 2,764
Census Tract 96.05 5,710 1.0 5,579
Census Tract 29.02 5,684 1.0 5,846
Census Tract 96.06 5,671 0.5 12,038
Census Tract 10 5,669 1.0 5,750
Census Tract 14 5,666 0.5 12,073
Census Tract 90.01 5,642 0.6 8,859
Census Tract 99.07 5,627 3.2 1,752
Census Tract 63 5,616 3.1 1,794
Census Tract 82.03 5,608 0.7 8,515
Census Tract 100.02 5,584 0.7 7,706
Census Tract 66.02 5,551 1.0 5,706
Census Tract 70.01 5,521 1.3 4,102
Census Tract 92.02 5,459 0.6 8,687
Census Tract 96.04 5,444 0.9 6,295
Census Tract 3.01 5,443 0.9 6,208
Census Tract 101.01 5,429 1.1 5,069
Census Tract 29.03 5,303 1.1 4,687
Census Tract 41.02 5,288 0.7 7,129
Census Tract 7.02 5,243 0.5 9,642
Census Tract 104.13 5,227 0.6 8,329
Census Tract 58 5,204 1.5 3,547
Census Tract 75 5,140 0.8 6,165
Census Tract 103.04 5,140 0.8 6,185
Census Tract 95.01 5,137 0.7 7,234
Census Tract 19 5,123 0.7 7,490
Census Tract 90.02 5,121 0.4 11,585
Census Tract 103.06 5,038 0.6 7,869
Census Tract 30 5,038 0.6 7,993
Census Tract 89.03 5,024 2.4 2,110
Census Tract 89.04 5,006 1.4 3,691
Census Tract 8.02 5,005 0.5 9,736
Census Tract 8.01 5,004 0.6 8,313
Census Tract 97.03 4,979 0.6 8,588
Census Tract 31 4,940 0.5 9,957
Census Tract 22.03 4,931 0.5 9,048
Census Tract 87 4,916 0.6 7,580
Census Tract 9.02 4,910 0.4 12,696
Census Tract 84 4,854 0.5 9,692
Census Tract 36.01 4,819 0.6 7,640
Census Tract 7.01 4,811 0.5 8,748
Census Tract 104.10 4,807 0.7 7,029
Census Tract 92.04 4,763 0.5 10,195
Census Tract 93.02 4,743 1.1 4,517
Census Tract 29.01 4,687 0.6 7,902
Census Tract 25.01 4,672 0.5 9,041
Census Tract 98.01 4,633 1.0 4,656
Census Tract 85 4,629 0.8 5,450
Census Tract 83.02 4,621 0.9 5,397
Census Tract 79 4,617 0.8 5,897
Census Tract 16.02 4,616 0.6 7,170
Census Tract 25.02 4,614 0.4 10,738
Census Tract 5.02 4,597 0.6 8,286
Census Tract 101.02 4,549 0.9 4,907
Census Tract 51.01 4,433 0.1 36,125
Census Tract 65.02 4,419 0.7 5,941
Census Tract 83.01 4,399 0.6 6,934
Census Tract 38.03 4,385 0.5 9,224
Census Tract 9.01 4,382 0.4 10,068
Census Tract 86 4,357 0.5 8,791
Census Tract 47 4,346 0.3 15,749
Census Tract 37.01 4,332 0.6 7,601
Census Tract 18.01 4,326 0.5 9,509
Census Tract 41.03 4,308 1.2 3,648
Census Tract 95.02 4,271 0.6 6,745
Census Tract 32 4,252 0.4 9,614
Census Tract 88 4,204 0.6 6,583
Census Tract 42 4,201 0.7 5,717
Census Tract 59.02 4,168 0.2 23,290
Census Tract 89.02 4,166 1.2 3,619
Census Tract 5.01 4,134 0.4 9,490
Census Tract 34.02 4,120 0.3 13,799
Census Tract 64.03 4,114 0.7 5,684
Census Tract 103.05 4,105 1.2 3,468
Census Tract 13.01 4,099 0.3 14,252
Census Tract 39.04 4,075 0.5 8,861
Census Tract 23.03 4,074 0.8 5,326

Showing the 100 most populous of 197 — the rest are shown on the map.

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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.

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