| 1970's |
| 1970 |
- May 10 - Des Moines Marina opened.
|
| 1973 |
- Jan. 1 - The new Metro Transit system entered service precipitated by the impending bankruptcy of the Seattle Transit System and several private suburban bus systems.
|
| 1975 |
- "Timber, Tides, and Tales" published by Melanie Draper. First history book of the Des Moines area. Cosponsored by the Library League and American Revolution Bicentennial Planning Commission. Des Moines was designated a Bicentennial Community on April 18, 1975.
|
| 1976 |
- Port of Seattle's began their Airport Noise Abatement program to buy out and insulate homes and schools adversely impacted by noise. The snail pace of this program pushed its completion date into the next millennia.
|
| 1977 |
- First Affair D'Elegance (Classic Auto show) held in Zenith at the home of Gordon and Claudia Apker.
|
| 1978 |
- Aug. 21 - Greater Des Moines-Zenith Historical Society (now the Des Moines Historical Society) is formed and merged with the Des Moines-Zenith Improvement Club.
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| 1979 |
- Fishing Pier built at the Des Moines Marina.
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