Union County's widening gap.

June 2026 tells a clear story in Union County: 341 single family sales closed at a median of $750,000, up 3.7% year over year, with homes trading at 106.0% of list. The countywide picture looks calm. Zoom in and the county is anything but uniform. Maplewood homes cleared at 121.9% of list in 11 days. Millburn's median crossed $2.5 million, up 36.2% year over year. Meanwhile Kenilworth's four closings pulled a median down to $520K on a small-sample swing, and Linden inventory grew 31% with days on market at 30. The county average is a useful headline; the town-by-town data is where decisions get made.

The numbers below come from the New Jersey REALTORS Local Market Update for closings recorded during June 2026. We've broken down our home town of Union alongside eight neighboring Union County municipalities so you can see where June's momentum, and June's opportunities, actually sit.

The headline numbers

What the June numbers actually mean

Union County's countywide inventory sat at 578 active single family listings in June, down 3.7% year over year. Closed sales rose 7.9% while new listings held roughly steady. That combination, more selling and less new supply, is what has kept months of supply at 2.4 despite the modest countywide price gain.

The 106.0% list-to-sale ratio for the county is a headline number that masks meaningful variance. Well-priced homes in Maplewood, Cranford, and Union Township consistently cleared 5 to 20% over asking. Kenilworth, Linden, and Hillside ran closer to list. Understanding which of those cohorts your property, or your target property, falls into is more actionable than the county average.

One quiet standout: our home market of Union Township posted 43 single family closings, up 48.3% year over year, at a $609,000 median (+1.5%). That volume growth against a countywide 7.9% gain shows how strong the mid-price commuter-friendly cohort remains.

Town-by-town: where the action is

Here is the June 2026 single family breakdown for our home town of Union alongside eight neighboring municipalities:

*Kenilworth's apparent decline reflects a small sample; four closings in June 2026 versus two in June 2025, with a mix skewed to smaller homes. Year-to-date pricing tells a steadier story.

Five patterns from the town data:

• Maplewood is the fastest, most competitive market in the county. An 11-day median with 121.9% of list price received means offers are landing 20% or more above asking. Inventory dropped 45.5% year over year to just 18 active homes, one month of supply.
• Millburn's $2.5M median is a real number, not a mix artifact. Thirty-two closings recorded, price up 36.2% year over year, at 104.4% of list. The Short Hills luxury segment is running as strong as we've seen it since 2022.
• Cranford's price dip is misleading. Median down 5.5% year over year, but homes cleared at 108.4% of list on a 20-day cycle with 1.1 months of supply. This is a mix-shift, not a demand issue.
• Union Township's 48.3% sales-volume gain is the biggest year-over-year jump of any Union County town we track. Prices held; volume surged.
• Linden and Hillside are where buyer leverage lives. Linden's 63 active listings and 4.1 months of supply, plus Hillside's 55-day DOM, both signal room to negotiate. Prices in both towns held flat to slightly down year over year.

Union County townhouse-condo snapshot

The countywide townhouse-condo segment posted a $412,500 median in June, down 8.2% year over year on 42 closings (up 16.7%). Days on market ran 26 with a 101.5% list-to-sale ratio. Union Township's small condo cohort actually ran opposite the county trend, with a $535,000 median (+18.2%) on 5 closings. Inventory in that segment sits at 3.1 months for the county, edging toward balanced-market territory.

What it means for buyers

Union County in June was a market with real options if you knew where to look. Countywide inventory of 578 active homes is only 3.7% below last June, and towns like Linden (up 31.3%), Springfield (up 46.7%), and Hillside (up 4.2%) each grew inventory meaningfully. What works right now:

• Match your budget to the right town. Under $600K puts you in Linden, Kenilworth, or Roselle Park territory. $700K to $900K opens Springfield, Cranford, and Union Township. Above $1M is Maplewood and Millburn. Cross-shopping across these bands wastes time.
• Move fast in Maplewood, Cranford, and Union Township. Combined months of supply across these three sits between 1.0 and 1.8. Homes clear the market inside three weeks, often faster.
• Look at Springfield and Linden for value. Springfield inventory grew 46.7% year over year with median softening 11.4%. Linden inventory grew 31.3%. Both markets have real negotiating room.
• Get fully pre-approved with recent comps. Maplewood's 121.9% of list means you need to build 20% headroom into your budget planning. Nobody wants to fall in love with a home you cannot competitively offer on.

What it means for sellers

Union County sellers had a strong June across most of the county. Countywide months of supply held at 2.4, homes cleared at 106.0% of list, and days on market ran 27. The pattern for the summer window is clear:

• Price into competition, not on top of it. Maplewood's over-ask premiums exist because those homes list slightly below the highest comp. Buyers arrive, they compete, and the offers pull the number above list. Homes priced at the top of the comp range tend to sit and cut.
• Millburn and Maplewood sellers have the strongest window in three years. Both markets combine tight supply (1.0 to 2.0 months) with a buyer pool willing to pay premiums for turn-key inventory. If you were waiting for the "right time," June's data supports listing.
• Linden and Springfield sellers need to be strategic. With inventory up 31 to 47 percent year over year, positioning matters more than it did last summer. Aggressive pricing and strong staging drive competitive offers.
• Kenilworth sellers should discount the June median. Four closings do not make a market. Look at rolling six-month comps and price to that reality, not to the June headline.
• Skip the automated valuation. Zillow lags 60 to 90 days on Union County movement and cannot capture town-level variance this wide. Local, comp-driven valuation is the only number that matters.

The Union County data table

Source: New Jersey REALTORS, Local Market Update for June 2026, Union County. Townhouse-condo segment posted a $412,500 median (down 8.2% YoY) on 42 closings. Adult community segment small but active with a $525,000 median on 3 closings.

The bottom line

Union County in June 2026 was a market of averages that hide extremes. The county median gained a modest 3.7% year over year. Underneath that number: Millburn ran up 36%, Maplewood cleared at 121.9% of list, Kenilworth and Linden softened, and our home market of Union Township posted its strongest sales-volume growth in more than a year. The takeaway for anyone considering a summer move is that town-level data matters more than the county headline. Whether you're buying or selling, the right decision starts with knowing which of these town markets you're actually operating in.

Maplewood cleared at 121.9% of list. Linden inventory grew 31%. In the same county, in the same month. Averages do not tell you which market you're in; town-level data does.