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100data points analyzed by Sailpages.com to compile this ISLANDER 30 MK II buyer’s report
ISLANDER 30 MK II

ISLANDER 30 MK II

Islander🇺🇸· Design: Robert Finch
$10,999 avg$3,500 – $18,000 (10 listings)1970–1985500 built
$1.4K – $3.8K est. annual maintenance
Offshore CruisermonoMasthead SloopFin

Specifications

Hull

LOA30 ft
LWL24.58 ft
Beam10 ft
Draft5 ft
Displacement8,600 lb
Ballast3,500.2 lb
Hull speed1.34·√LWL6.6 kn

Rig & Sails

Iforetriangle height40 ft
Jforetriangle base12.8 ft
Pmainsail luff34 ft
Emainsail foot11.5 ft
FLforestay12.6 ft
Mainsail461.9 sq ft
Jib (100%)242.6 sq ft
Spinnaker412.3 sq ft
SA total451.5 sq ft

About the ISLANDER 30 MK II

Similar to the ISLANDER BAHAMA 30. Tot. SA: 451.50 sq.ft./41.94 m2

Sailpages Buyer's Take

Designed by Robert Finch and built by Islander from 1970–1985, the Islander 30 Mk II is a robust cruising sloop with 500 hulls produced. Its 8600.0 lb displacement and 3500.2 lb ballast provide a stable platform, though owners frequently report structural concerns requiring attention.

Best for:
This boat suits coastal cruisers and those seeking a comfortable, heavy-displacement vessel for protected waters, given its 23.61 comfort ratio and 10.0 ft beam.
Bluewater capability:
With a 1.96 capsize ratio and 258.53 D/L ratio, the boat is moderately capable offshore, but its 24.58 ft LWL and fin keel suggest it is better suited for coastal passages than heavy ocean voyaging.
Comparables:
Comparable to the Cal 30 and O'Day 302 from the same era, these boats share similar displacement and beam dimensions, offering comparable interior volume and cruising comfort.

Performance

Comfort23.6
Capsize1.96
SA/Disp17.1
Disp/Len259
Bal/Disp40.7

Estimated Value

Medium Confidence
Based on 10 listings
Low
$4,574
Estimated Value
$7,200
High
$7,875
Boats sell for ~0% below asking price (based on 3 actual sales) · Inflation-adjusted to 2026 USD

Asking price by model year

11 listings · boat years 19711985 · median $12,000

$0$10k$20k$30kmedian $12,00019701975198019851977 Islander Mk ii · $13,500 · Outside United States1973 Islander MK III · $7,000 · North Carolina, US1985 Islander Perry 34 mk II SOLD · $23,000 · California, US1977 Islander 32 MKII · $12,000 · Maine, US1971 Islander 30 MkII · $16,500 · Oregon, US1976 Islander MK II · $12,000 · California, US1971 Islander MKII · $3,500 · New York, US1971 Islander MK II · $12,000 · California, US1973 Islander Mark II · $5,995 · California, US1973 Islander Mark II · $9,495 · California, US1978 Islander 32 MKII · $18,000 · Rhode Island, USAsking price (USD)Boat model year

Each dot is one listing · hover for details · dashed red line marks the median · obvious data-entry outliers (top & bottom 2.5%) excluded.

Estimated Cost of Ownership

Based on 30ft LOA. Actual costs vary by condition, usage, and local rates.

$/ft/mo
Annual Maintenance
$1.4K – $3.8K
Hull, rigging, sails, engine service
Annual Docking
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Known Issues & Pre-Purchase Inspection

19 reported issues across 8 systems for the ISLANDER 30 MK II, compiled from owner reports in sailing forums and owner-association material.

6 critical6 major7 minor
Structural4Engine4Deck3Rigging2Rudder2Hull2Plumbing1Keel1

Unlock the full inspection report

Thinking of buying a ISLANDER 30 MK II? This is an in-depth report on the faults this model is known for — so you know exactly what to check when you walk the boat. For the price of a coffee.

  • All 19 specific issues — severity, symptoms & fixes
  • Model-specific pre-purchase inspection checklist
  • Downloadable PDF to take to your surveyor — yours to keep

One-time $2.99 · secure checkout by Stripe · instant access · 30 days online, PDF yours to keep

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Engine Parts & Maintenance

The engines most commonly fitted to this model. “All parts” opens the engine's full catalogue; each part links to a matching listing on Amazon or eBay matched to its part number.

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Used sails that fit the ISLANDER 30 MK II

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