Elizabethport is the oldest neighborhood and perhaps the most diverse in Elizabeth, the largest city and the county seat of Union County, in New Jersey, United States. It consists of a collection of old world Elizabethan, new American colonial-style houses and apartment buildings that stretch east of 7th Street to its shores. The name is derived from its dependence on businesses catering to seagoing ventures. It was a thriving center of commerce between the 1660s through the middle of the 20th Century. This area has had a great deal of improvement since 2000. Many homes have been renovated or been replaced with new, more ornate structures. Federal housing projects that stood for decades along First Street have been demolished and replaced with low to moderate income housing. The waterfront is home to new town homes and two-family homes (duplexes).