Clackamas County sets no countywide grass-height limit for private residential yards. Code enforcement focuses on road-visibility hazards, not lawn length. Inside cities like Oregon City, Lake Oswego and Milwaukie, the city's nuisance code governs tall grass and weeds.
Unincorporated Clackamas County has no general nuisance ordinance fixing a maximum lawn height on private property. County code enforcement handles high-priority safety issues, and its own guidance states 'Vegetation in public right-of-way is the property owner's responsibility' and lists 'Road visibility obstructions or blocked traffic signs' as enforceable. Overgrown grass on a residential lot, by itself, is not a county code violation. If you live inside an incorporated city, that city's municipal nuisance code (not the county) sets any tall-grass or weed-abatement standard. Roadside vegetation blocking sightlines or signs is the exception the county will act on.
No county fine for tall lawns. Road-obstructing vegetation can be ordered cleared; unresolved right-of-way hazards may be abated at the owner's cost.
Other ordinances people look up for this city. Green dot = verified primary-source excerpt.
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Clackamas County parks close at night: entrance gates are locked from 10 p.m. to 6 a.m., quiet hours run 10 p.m. to 7 a.m., and no one under 18 may camp over...
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Clackamas County's ZDO addresses light trespass through Subsection 1005.04, which requires outdoor lighting to be shielded and directed so light stays within...
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Clackamas County has no formal 'dark-sky' overlay, but ZDO Subsection 1005.04 requires outdoor lighting not to direct light skyward: fixtures must shield and...
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In unincorporated Clackamas County, garage-sale signs are temporary signs under ZDO Section 1010. A sign 3 square feet or less needs no permit, temporary sig...
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Clackamas County confirms 'the size and placement of political signs are not regulated by election law.' In the unincorporated county, campaign signs follow ...
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A tiny home on a foundation is treated as a dwelling or ADU under Clackamas County's ZDO (Section 839 for ADUs). A tiny house on wheels is an RV and cannot b...
See how Clackamas County's grass height limits rules stack up against other locations.
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