Union County, NJ homes and real estate
Live listings, the facts that matter and a REALTOR® who picks up the phone.
Union County is in north-central New Jersey, with 575,345 residents in the 2020 census across 21 municipalities. Its county seat is Elizabeth, the county's largest municipality, and five NJ Transit rail routes run through the county.
On November 2, 2026, my search showed 1,621 active Union County listings of all types, for sale and for rent.
I am Bogdan Nicolae Rus, a licensed New Jersey REALTOR® with eXp Realty (license #2186044). My day-to-day focus is Hudson County, and I also help buyers, sellers and renters in Union County.
My search pulls from the Hudson County MLS and Garden State MLS, so it may not show every home on the market in Union County. If you spot a home somewhere else, send me the address and I will look into it.
Bogdan Nicolae Rus, REALTOR® · Last updated November 2, 2026 · County facts: Wikipedia, Union County, citing the 2020 U.S. census. Listing count: my live MLS search, November 2, 2026. Photo: Westfield, Freeholdman12, CC BY 4.0.
How do you get from Union County to New York City?
NJ Transit serves Union County on five rail routes: the Northeast Corridor, the North Jersey Coast Line, the Raritan Valley Line, the Morristown Line and the Gladstone Branch. The southern part of Newark Liberty International Airport is in Elizabeth.
I check the walk or drive to the nearest station for each home, because it changes a lot from town to town. I walk through one Union County town, Westfield, in my Westfield guide.
What should you know about Union County?
Union County has 21 municipalities. Elizabeth, the county seat, is the largest by both population and land, with 137,298 residents in the 2020 census, and part of Newark Liberty International Airport sits inside it.
Taxes and zoning are set town by town, so I check them for the specific home, not the county as a whole.
How did Union County begin?
Union County was formed on March 19, 1857, from part of Essex County, the last of New Jersey's 21 counties to be created. It was named after the Union, at a time when the dispute over slavery threatened it, four years before the Civil War began.
How can I help you in Union County?
I can help you buy, sell or rent in Union County, with the whole process in English, Romanian or Spanish.
- Buying: see how I work with buyers, what attorney review means in New Jersey, and your likely closing costs.
- Selling: start with a free home valuation and the sale proceeds calculator.
- Renting: see renting with me.
Where else can I look on this site?
Union County towns with a full walk-through on this site:
The other counties on this site:
- Bergen County
- Essex County
- Hunterdon County
- Middlesex County
- Morris County
- Passaic County
- Somerset County
- Sussex County
- Warren County
Hudson County, where I work every day:
Frequently asked questions
What is the county seat of Union County, NJ?
Elizabeth is the county seat of Union County.
How many municipalities are in Union County, NJ?
Union County has 21 municipalities.
How do you get to New York City from Union County?
NJ Transit serves Union County on the Northeast Corridor, the North Jersey Coast Line, the Raritan Valley Line, the Morristown Line and the Gladstone Branch.
Do you work in Union County?
Yes. I am licensed across New Jersey and help buyers, sellers and renters in Union County. My day-to-day focus is neighboring Hudson County, and I will always tell you plainly what I know firsthand and what I need to check.
Looking in Union County? Call me.
I answer my own phone. Tell me what you are planning and we will take it one step at a time.
Call or text (201) 584-6156 · email bogdan@bogdannicolaerus.com
50 Harrison St, Suite 205, Hoboken, NJ 07030
Bogdan Nicolae Rus, REALTOR®, eXp Realty · NJ license #2186044.