Cities in Warren County, New Jersey by Population (2024)

There are 51 cities in Warren County, New Jersey.

Note: As defined by the US Census Bureau, a city's official boundaries often extend miles beyond the city itself and may even cross county lines. As such, several thousand US cities officially exist in two or more counties (and therefore appear on multiple counties' lists of cities.)

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City	Rank	State	2024 Population	2020 Census	Annual Change	Density (mi²)	Area (mi²)
Phillipsburg	1	New Jersey	15,415	15,225	0.31%	4,831	3.19
Hopatcong	2	New Jersey	14,735	14,327	0.7%	1,354	10.88
Lake Mohawk	3	New Jersey	10,103	9,148	2.02%	2,012	5.02
Hackettstown	4	New Jersey	10,031	10,229	-0.49%	2,777	3.61
Flanders	5	New Jersey	9,050	8,744	-0.63%	1,219	7.42
Newton	6	New Jersey	8,581	8,351	0.68%	2,554	3.36
Washington	7	New Jersey	7,405	7,285	0.41%	3,768	1.97
Beattystown	8	New Jersey	5,530	4,550	4.64%	1,827	3.03
Panther Valley	9	New Jersey	4,932	3,937	3.9%	1,653	2.98
Stanhope	10	New Jersey	3,603	3,517	0.61%	1,960	1.84
Greenwich	11	New Jersey	2,750	2,747	-2.07%	3,032	0.91
Belvidere	12	New Jersey	2,553	2,515	0.39%	1,762	1.45
Alpha	13	New Jersey	2,363	2,325	0.43%	1,406	1.68
Byram Center	14	New Jersey	1,921	2,017	-1.23%	671	2.86
Upper Pohatcong	15	New Jersey	1,772	1,774	0%	2,743	0.65
Hampton	16	New Jersey	1,459	1,435	0.41%	969	1.50
Brass Castle	17	New Jersey	1,313	1,629	-5.67%	447	2.94
Oxford	18	New Jersey	1,213	1,285	-1.46%	1,758	0.69
Crandon Lakes	19	New Jersey	1,061	1,221	-3.63%	415	2.56
Anderson	20	New Jersey	820	394	10.51%	921	0.89
Bloomsbury	21	New Jersey	803	791	0.38%	862	0.93
Lopatcong Overlook	22	New Jersey	696	740	-1.56%	1,886	0.37
Stewartsville	23	New Jersey	683	549	5.24%	631	1.08
Andover	24	New Jersey	609	593	0.66%	452	1.35
Vienna	25	New Jersey	600	1,018	-12.15%	205	2.92
Brookfield	26	New Jersey	592	956	-13.32%	711	0.83
Johnsonburg	27	New Jersey	577	363	10.32%	542	1.06
Mountain Lake	28	New Jersey	521	565	-2.07%	463	1.13
New Village	29	New Jersey	476	539	0.21%	502	0.95
Hainesburg	30	New Jersey	381	117	19.44%	253	1.50
Delaware Park	31	New Jersey	357	331	2%	1,457	0.24
Great Meadows	32	New Jersey	356	264	6.91%	233	1.53
Upper Stewartsville	33	New Jersey	308	380	-5.52%	880	0.35
Finesville	34	New Jersey	303	272	-4.42%	143	2.12
Mount Hermon	35	New Jersey	290	163	11.54%	311	0.93
Hope	36	New Jersey	273	153	10.98%	377	0.72
Blairstown	37	New Jersey	266	268	0%	635	0.42
Silver Lake	38	New Jersey	256	397	-11.72%	203	1.26
Harmony	39	New Jersey	248	410	-13.89%	239	1.04
Port Colden	40	New Jersey	233	82	1.75%	460	0.51
Columbia	41	New Jersey	219	143	2.34%	2,190	0.10
Marksboro	42	New Jersey	205	125	10.81%	95	2.15
Bridgeville	43	New Jersey	203	311	-11.74%	223	0.91
Asbury	44	New Jersey	199	207	-1%	287	0.69
Buttzville	45	New Jersey	149	57	18.25%	181	0.82
Brainards	46	New Jersey	143	189	-7.14%	777	0.18
Delaware	47	New Jersey	120	130	-1.64%	231	0.52
Hutchinson	48	New Jersey	108	122	-2.7%	110	0.98
Allamuchy	49	New Jersey	90	114	-6.25%	35	2.58
Broadway	50	New Jersey	0	183	0%	0	0.37
Port Murray	51	New Jersey	0	216	0%	0	0.99

showing: 51 rows

Note: City markers shown outside the county boundary mean that a part of the city extends into this county, but is primarily located in an adjacent county.

What is the largest city in Warren County, New Jersey?

Phillipsburg is the largest city in Warren County.

What is the smallest city in Warren County, New Jersey?

Port Murray is the smallest city in Warren County.

How many cities are in Warren County?