Multnomah County, Oregon Genealogy

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Guide to Multnomah County, Oregon ancestry, family history, and genealogy birth records, marriage records, death records, census records, and military records.

Multnomah County, Oregon
Map of Oregon highlighting Multnomah County
Location in the state of Oregon, United States Genealogy
Map of the U.S. highlighting Oregon
Location of Oregon in the U.S.
Founded December 22, 1854
County Seat Portland
Oregon, Multnomah County Courthouse.png
Address Multnomah County Courthouse
1021 SW 4th Avenue
Portland, OR 97204-1123
Phone: 503.248.3511
Multnomah County Website

County Information[edit | edit source]

Description[edit | edit source]

The County was named for the Chinookan word for the "lower river". The County is located in the northwest area of the state. [1]

Multnomah County, Oregon Record Dates[edit | edit source]

Known Beginning Dates for Major County Records[2]
Birth* Marriage Death* Court Land Probate Census
1864 1855 1864 1854 1854 1850 1845
*Statewide registration for births and deaths in 1903. General compliance year unknown.

County Courthouse[edit | edit source]

County Clerk has divorce, court and land records from 1854 [3]

Multnomah County Information[edit | edit source]

Boundary Changes[edit | edit source]

22 December 1854: Multnomah county was created from Clackamas and Washington Counties. Named after Native American people first recorded in the journals of the Lewis and Clark Expedition, the Mulknomans, who inhabited the area of Portland, most specifically on Sauvie Island. [4]

For animated maps illustrating Oregon County boundary changes, "Rotating Formation Oregon County Boundary Maps" (1843-1975) may be viewed for free at the website.

Record Loss[edit | edit source]

There is no known history of courthouse disasters in this county.

Places / Localities[edit | edit source]

For a complete list of populated places, including small neighborhoods and suburbs, visit HomeTown Locator.

The following are the most historically and genealogically relevant populated places in this county:[5]

Unincorporated communities
Historic communities

Defunct Post Offices

  • Albina: Albina post office was in service from 1876 to 1892.

Trivia Tidbits[edit | edit source]

Information about localities, too small or too brief to describe in separate pages. Exception to this are Post Offices. Trivia Tidbits

Resources[edit | edit source]

Biography[edit | edit source]

Cemeteries[edit | edit source]

Tombstone Transcriptions Online Tombstone Transcriptions in Print List of Cemeteries in the county Family History Library
ORGenWeb WorldCat Billion Graves
ORGenWeb Archives FamilySearch Places
Tombstone Project
Billion Graves
See Oregon Cemeteries for more information.

Census[edit | edit source]

Historical populations
Census Pop.
1860 4,150
1870 11,510 177.3%
1880 25,203 119.0%
1890 74,884 197.1%
1900 103,167 37.8%
1910 226,261 119.3%
1920 275,898 21.9%
1930 338,241 22.6%
1940 355,099 5.0%
1950 471,537 32.8%
1960 522,813 10.9%
1970 556,667 6.5%
1980 562,640 1.1%
1990 583,887 3.8%
2000 660,486 13.1%
2010 735,334 11.3%
Source: "".

Church Records[edit | edit source]

Lutheran[edit | edit source]
  • Records of Central Lutheran Church, Portland, in Evangelical Lutheran Church in America database at ($).

List of Churches and Church Parishes

Court Records[edit | edit source]

Gazetteers[edit | edit source]

History[edit | edit source]

Land and Property[edit | edit source]

Maps[edit | edit source]

Skamania CountyClark CountyHood River CountyClackamas CountyWashington CountyColumbia CountyOR MULTNOMAH.PNG
Click a neighboring county
for more resources

Migration[edit | edit source]

Early migration routes to and from Multnomah County, Oregon Genealogy for European and African American settlers included:

Military History and Records[edit | edit source]

Civil War[edit | edit source]

World War I[edit | edit source]

World War II[edit | edit source]

Newspapers[edit | edit source]

Oregon Online Historical Newspapers - identifies historical archived and digitized newspapers available online on both free and pay-to-access websites.

Poor Farm Records[edit | edit source]

Probate Records[edit | edit source]

Online Records

Rivers and Waterways[edit | edit source]

Details about the rivers and waterways where farms and settlements are often found along them. Rivers and Waterways

Taxation[edit | edit source]

Vital Records[edit | edit source]

Birth Records[edit | edit source]

Delayed Birth Certificates

Marriage Records[edit | edit source]

The Genealogical Forum of Oregon has placed an index on-line to the following marriage books: (FI$)

See also How to order Oregon Vital Records, order electronically online $ or download an application for Oregon Birth Certificate, Marriage Certificate, Divorce Certificate, Death Certificate Application to mail.

Death[edit | edit source]

Voter Registration Records[edit | edit source]

Societies, Libraries and Museums[edit | edit source]

Genealogical Forum of Oregon
2505 SE 11th Ave., Suite B-18
Portland, OR 97202
Online Library Catalog
Facebook Page

East County Historical Organization
PO Box 946
Fairview, OR 97024

Multnomah Historical Association
PO Box 19785
2929 SW Multnomah Blvd
Portland, OR 97219
Facebook Page

David Douglas Historical Society
11300 NE Halsey St
Portland, OR 97220

Multnomah County Library Administration
919 NE 19th Ave Suite 250
Portland OR 97232
Facebook Page

Family History Centers[edit | edit source]

Family History Center and Affiliate Library Locator map - search for local Family History Centers or Affiliate Libraries

  • Family History Centers provide one-on-one assistance, free access to center-only databases, and to premium genealogical websites.
  • FamilySearch Affiliate Libraries have access to most center-only databases, but may not always have full services normally provided by a family history center.

Local Centers and Affiliate Libraries

Websites[edit | edit source]

Multnomah County Oregon Genealogy References[edit | edit source]

  1. Wikipedia contributors, "Multnomah, Oregon" in,_Oregon_Genealogy accessed 28 Nov 2018
  2. Handybook for Genealogists: United States of America, 10th ed. (Draper, Utah: Everton Pub., 2002), Multnomah County, Oregon . Page 572-574 At various libraries (WorldCat); FHL Book 973 D27e 2002; Alice Eichholz, ed. Ancestry’s Red Book: American State, County, and Town Sources, Third ed. (Provo, Utah: Ancestry, 2004), 563-564.
  3. Handybook for Genealogists: United States of America, 10th ed. (Draper, Utah: Everton Pub., 2002), Multnomah County, Oregon page 573, At various libraries (WorldCat); FHL Book 973 D27e 2002.
  4. Handybook for Genealogists: United States of America, 10th ed.; Draper, Utah: Everton Pub., 2002 WorldCat 50140092, FHL Book 973 D27e 2002
  5. Wikipedia contributors, "Multnomah County, Oregon" in Wikipedia: the Free Encyclopedia,,_Oregon, accessed 16 December 2018.
  6. Jim Tompkins, "The Oregon Trail 1841-1848 Map VI" in Oregon Trail Landmarks at (accessed 18 July 2011).