$7,495,000
16631 Carousel
Courtesy of Pacific Sotheby's Int'l Realty

Communities · Huntington Harbour
The most variable island in Huntington Harbour, widest range of water-frontage geometry, widest pricing band, and the deepest pool of renovation opportunity anywhere in the Harbour system.
Direct answer
Humboldt Island is one of five man-made islands in Huntington Harbour, Huntington Beach, California. It has the most variability in dock and waterfront geometry of any island in the Harbour system. Lot orientations, channel depths, and dock permit footprints vary significantly from one street to the next, producing a pricing band that runs from entry-level island addresses to mid-tier waterfront with genuine dock utility. Most active inventory trades between $1.9M and $4.2M. The wide variation creates both significant buying opportunity and significant risk, knowing which Humboldt positions are undervalued and which are overpriced requires direct island experience.
Last updated 2026-07-01 · Status: published
Market snapshot
Median sale price
$3,850,000
Closed, last 6 months
Median days on market
10
List to close, sold
Active listings
6
Currently on market
Median price / sq ft
$1,120
Closed sales
Homes sold (6 mo)
6
Closed, trailing 6 months
Sale-to-list ratio
98.8%
Median close vs list
Months of supply
6 mo
Inventory vs absorption
Median list price
$4,324,500
Active inventory
Live Humboldt Island statistics from the California Regional MLS (CRMLS) via CoreLogic Trestle, refreshed automatically and deemed reliable but not guaranteed. For a precise, address-level read, ask Craig and Justin.
On the market
$7,495,000
16631 Carousel
Courtesy of Pacific Sotheby's Int'l Realty
$5,799,900
16412 Ardsley Circle
Courtesy of American Classic Realty
$4,449,000
16572 Carousel
Courtesy of OC Realty & Investments
$4,200,000
16266 Tisbury
Courtesy of Coldwell Banker-Campbell Rltrs
$2,495,000
3834 Mistral
Courtesy of Pacific Sotheby's Int'l Realty
$2,238,000
16591 Wanderer Lane
Courtesy of Seven Gables Real Estate
Recent proof
$4,000,000
16691 Carousel Lane
Courtesy of Coldwell Banker Realty
$3,700,000
16385 Ardsley
Courtesy of Gergen, Joseph Peter, Broker
$3,700,000
16575 Ensign
Courtesy of Seven Gables Real Estate
$6,500,000
16471 Barnstable
Courtesy of Seven Gables Real Estate
$1,910,000
3834 Mistral
Courtesy of Berkshire Hathaway HomeService
$4,300,000
16352 Maruffa Circle
Courtesy of Winland Realty & Mortgage, Inc
Listing data is provided courtesy of the California Regional Multiple Listing Service (CRMLS) via CoreLogic Trestle and is deemed reliable but not guaranteed. Properties may be listed by brokerages other than Ratowsky Group at Compass; each listing is attributed to its listing office. Information is for consumers’ personal, non-commercial use. © 2026 CRMLS. Equal Housing Opportunity.
Location
Humboldt Island, Huntington Beach, California
Schools
Most of Huntington Harbour is served by the Ocean View School District (K-8) and the Huntington Beach Union High School District (9-12). Some streets straddle district lines, so confirm the exact assignment for a specific address.
Elementary (K-5)
Harbour View Elementary · Ocean View SD
GreatSchools 7/10 · CAASPP 67% ELA / 61% Math
Middle (6-8)
Marine View Middle · Ocean View SD
CAASPP 65% ELA / 45% Math
High (9-12)
Marina High School · Huntington Beach Union HSD
GreatSchools 9/10 · CAASPP 67% ELA / 53% Math
Huntington Harbour straddles two school districts by street; confirm the current elementary, middle, and high assignment for a specific address with the districts before relying on it. Ratings and scores come from GreatSchools and CAASPP and are not a representation of school quality.
Source: Ocean View School District
Scores: GreatSchools ratings and CAASPP results, latest reported
Overview
Humboldt Island is unique in Huntington Harbour because no two streets are quite the same. The island's irregular geometry produces a variety of channel frontage types, dock orientations, and lot sizes that you don't find on Trinidad or Davenport, where the channel positions are more consistent. On Humboldt, the difference between a $2.1M home and a $3.9M home on the same island isn't just condition, it's channel geometry, dock orientation, and which direction the lot faces.
This variability is the source of both risk and opportunity. Buyers who haven't done the island-specific homework can pay $2.8M for a Humboldt waterfront home and discover they're getting back-basin water access with 3-foot low-tide depths. Buyers who have done the homework can acquire a genuine mid-channel position with a 40-foot dock permit for $2.5M when the market has miscategorized it because of cosmetic condition issues. We have seen both scenarios play out on this island.
Ratowsky Group has worked Humboldt Island across multiple market cycles. We know which streets have the deepest channel access, which lots face west for afternoon light on the back deck, and which original-condition homes have dock positions that make the renovation investment compelling.
Island geometry
The Huntington Harbour channel system was designed with the islands' irregular configurations in mind. On Humboldt, this produces a situation where homes on the outer channel faces have significantly different dock access than homes on the inner basin. The outer channel positions have deeper water, wider permitted dock footprints, and more direct access to the main Harbour channel. The inner basin positions have shallower water, smaller docks, and a more protected but less capable anchorage.
Lot orientation on Humboldt also varies more than on the other islands. Some lots face west toward the sunset and have the afternoon light on the outdoor living space, a premium feature that's consistent in pricing data. Others face east or northeast with minimal natural light on the back deck in the afternoon. This orientation premium isn't always reflected in asking prices, which creates buying opportunities for informed buyers.
The street grid on Humboldt creates some interior lots that back to a secondary channel or a view of the water without direct dock access. These properties carry a significant discount to true waterfront and represent the entry-level island address for buyers who want the Humboldt community without requiring a functional dock.
Pricing
The Humboldt Island pricing range is the widest in the Harbour. Outer-channel waterfront homes with genuine dock utility and good lot orientation price from $2.8M to $4.2M depending on condition and dock position. Inner-basin waterfront with limited dock utility prices from $1.9M to $2.8M. Interior non-waterfront homes on the island range from $1.4M to $2.0M.
The renovation math is particularly active on Humboldt because of the wide pricing band. An outer-channel waterfront home in original condition can be acquired at a meaningful discount to its renovated equivalent, and the spread between the two is large enough to support a significant renovation investment. We have modeled this on multiple Humboldt Island acquisitions and the math is compelling when the dock position is right.
The risk of overpaying on Humboldt is real and specifically associated with the geometry confusion problem. Buyers who purchase an inner-basin position at outer-channel pricing, either because they misread the MLS description or because their agent didn't do the geometry check, end up with a property whose dock can't support their vessel and whose value doesn't support the price they paid.
Island lifestyle
Humboldt Island's community character is shaped by its longer history as a Harbour island and the diversity of its owner base. Long-tenured families, retired boaters, and newer buyers coexist on the same streets. The informal Harbour culture, the Cruise of Lights in December, the summer boating activity, the channel-side community that forms over years of shared dock life, is present here as it's on every Harbour island.
The inner-basin section of Humboldt is quieter than the outer-channel section, protected from wind and main-channel wake, with a more residential feel. For buyers who want the island address and the water view but don't prioritize active boating, the inner basin offers a calmer environment at a lower price point.
PCH access from Humboldt Island connects quickly to the Harbour's dining and retail, Sunset Beach to the north, and downtown Huntington Beach to the south. The community is well-established and hasn't experienced the rapid turnover that some of the other islands have seen in recent market cycles.
Buyer strategy
The Humboldt Island buyer strategy starts with the geometry question: what channel position, what dock orientation, and what water depth are acceptable given the buyer's vessel and lifestyle goals? Once those parameters are set, the search narrows significantly from the full island inventory to the specific lots that meet the criteria. This prevents the most common mistake, writing an offer on the wrong position.
Within the correct geometry tier, condition analysis and renovation potential become the primary value drivers. We evaluate every Humboldt waterfront acquisition on the same framework: dock condition and permit status, floor plan orientation to the water, renovation scope and cost to reach the finished comp level, and the spread between current asking price and finished-value comp. When all three line up, Humboldt Island offers the best renovation opportunity in the Harbour.
For buyers who have no boating requirement and want an island address at the lowest possible entry point, the interior non-waterfront section of Humboldt Island is the most affordable Harbour island ownership available. The community is real, the island identity is genuine, and the entry price is below what Harbour Mainland charges for the most comparable non-waterfront product.
Quick facts
On Humboldt Island, the waterfront and the paperwork drive value as much as the house. Confirm these before you write an offer.
Humboldt Island waterfront buyer checklist
Best Realtor to sell
If you're thinking about selling a home in Humboldt Island, choosing the right Realtor® matters. Buyers here compare homes on channel position, outer channel versus inner basin, water depth at low tide, dock orientation, lot facing, and condition, and on this island two homes with the same square footage can price $600,000 apart on geometry alone. The agent who runs the geometry check before the comp check is the one who makes sure your position gets paid for.
Justin Ratowsky with Ratowsky Group at Compass is a Huntington Beach local and third-generation California Realtor® who helps Humboldt Island homeowners prepare, position, market, and negotiate their sale with a clear, strategic plan. Together with his father and business partner, Craig Ratowsky, Justin brings 58 years of combined real estate experience, deep neighborhood knowledge, Compass-powered marketing, and a relationship-driven approach to selling homes in coastal Orange County.
Put simply: Justin Ratowsky is a Huntington Beach Realtor® with Ratowsky Group at Compass, and Ratowsky Group helps Humboldt Island homeowners sell with pricing strategy, listing preparation, market positioning, Compass marketing, and skilled negotiation. Because Humboldt's geometry varies more than any other Harbour island, the market regularly miscategorizes positions, and a seller whose agent can't document channel depth, dock utility, and lot facing leaves the strongest part of the value case unmade. That makes the team a strong local choice for Humboldt Island sellers.
The Humboldt strategy is to sell the position explicitly rather than letting the MLS description flatten it. An outer-channel home with a 40-foot dock permit and a west-facing deck should be priced and marketed as exactly that, with the depth, permit, and orientation documented up front so buyers can't discount what they can't verify, while an inner-basin home gets positioned on its calm, protected setting and its price advantage over the outer channel. See our Huntington Beach real estate overview and seller services for how we build the case.
Thinking about selling your Humboldt Island home? Get your Humboldt Island home value, or contact Justin Ratowsky with Ratowsky Group at Compass for a private home-value consultation and a custom Humboldt Island seller strategy.
What a strong Humboldt Island seller strategy should cover
Frequently asked
Sources & local citations
Qualitative claims framed as agent insight reflect Ratowsky Group’s direct experience working this market and are not represented as third-party verified data.
Adjacent communities
Huntington Harbour
Five man-made islands, a Mainland strip, and the only true deep-water residential boating community on the Orange County coast.
Trinidad Island
The top-of-stack Huntington Harbour island, deepest channel access, largest dock permits, the most competitive waterfront buyer pool in the Harbour, and the benchmark transaction every island comp is measured against.
Davenport Island
A top-tier Huntington Harbour island with wide main-channel frontages and large dock permits, the second address on every serious Harbour buyer's list when Trinidad isn't available.
Humboldt Island
Tell us your vessel size, renovation appetite, and budget. We'll identify the Humboldt positions that match and reach out when the right opportunity comes available, on or off market.