Lake Jacomo (MO): Motor and Boating Rules
Jackson County · near Blue Springs · managed by Jackson County Parks + Rec
- Gas outboard YES
- Electric trolling YES
- PWC / jet ski VERIFY
- Jackson County, MO
- 970 acres
- 25 hp cap
- Jackson County Parks + Rec
Quick answer
Check your motor plate before hauling to Lake Jacomo: the limit is 25 hp. Lake Jacomo in MO is limited to outboard motors of 25 horsepower or less under Jackson County Parks + Rec regulations (verified July 26, 2026). Outboards rated above the cap are out. Electric trolling motors fit comfortably. Rules change and local ordinances may add restrictions — always confirm with Jackson County Parks + Rec before you launch.
Rules at a glance
Plate rating counts — motors rated above 25 hp are over the cap even at idle.
What this means in practice
Why 9.9 hp motors exist: manufacturers build them precisely for lakes like Lake Jacomo, where a 10 hp cap is the line. If your plate is worn or missing, carry documentation — enforcement reads the rating, not your word for it.
The cap is about the motor, not your speed, on most waters: a 40 hp outboard at idle is still a 40 hp outboard. This lake has its own wrinkle worth knowing — see the note below.
Worth knowing about Lake Jacomo: 970-acre Jackson County Parks + Rec lake in Fleming Park. Posted maximum horsepower is 25 hp for motorboats and 40 hp for sailboats and pontoons, and county boat and motor permits are required for all watercraft. County Ordinance 6073 (2026), which would have raised limits to 60-90 hp, was withdrawn by the county legislature on April 27, 2026..
Planning options around Missouri? The neighboring pages in our database cover Lake Girardeau (No wake, Cape Girardeau County) and Perry County Community Lake (No wake, Perry County), and the state hub lists all verified Missouri lake motor rules with the official source behind each.
Common mistakes on HP limit water
Rounding 9.9 up. A 9.9 hp motor is legal under a 10 hp cap — that is why it exists. Don't let a worn plate turn a legal motor into an argument; carry the manual or a photo.
Bringing the PWC. No production jet ski runs under a low horsepower cap, so the 25 hp limit on Lake Jacomo excludes them by arithmetic, no explicit ban needed.
Before you launch — verify
- The live rulebook is here: Jackson County Parks + Rec
- For edge cases — mounted-but-unused motors, tournaments, temporary orders — phone the Jackson County Parks + Rec office covering Jackson County.
- Our most recent source check for this page: .
Rules change and local ordinances may add restrictions — always confirm with Jackson County Parks + Rec before you launch.
Frequently asked questions
Are gas motors allowed on Lake Jacomo?
Gas is fine here as long as the motor's plate reads 25 hp or less. Anything rated higher is outside the rule on Lake Jacomo. Verified July 26, 2026.
Can I use an electric trolling motor on Lake Jacomo?
You can. Electric propulsion is permitted on Lake Jacomo; most boats here run a 12 V transom-mount trolling motor. Pack a paddle as backup for when the battery fades.
Are jet skis (PWC) allowed on Lake Jacomo?
The official source we cite does not state a clear PWC rule for Lake Jacomo. Confirm with Jackson County Parks + Rec before bringing a jet ski.
Who enforces boating rules on Lake Jacomo?
Jackson County Parks + Rec (county government) sets and enforces the motor rules on Lake Jacomo, with possible additional ordinances from Jackson County or local municipalities. State boating officers and local law enforcement both patrol restricted waters.
Where do I verify the current rules for Lake Jacomo?
Use the official document linked in the Sources section of this page — it is what this summary is based on — or go to Jackson County Parks + Rec directly. We last verified this page against the source on July 26, 2026.