The eastern saltmarsh mosquito is primarily a concern for properties near coastal marshes, not the urban neighborhoods MMPC typically services. For NYC residents dealing with mosquitoes, a coastal species is almost certainly not the cause. The far more likely culprits are urban-adapted species breeding on or near your property.
If you are unsure what kind of mosquito you are dealing with, MMPC can identify the species present.
Image by xpda, CC BY-SA 4.0, via Wikimedia Commons
3–7 mm
Golden brown with pale stripes