Post office in Watertown

AgentData lists 18 post offices in Watertown, United States. Updated May 2026.

18 businesses0 with websites
Castlewood Post Office
Clark Post Office
Hayti Post Office

207, Main Avenue, Hayti, 57241, SD

Hazel Post Office
Revillo Post Office
South Shore Post Office

105, North Main Street, South Shore, 57263, SD

Strandburg Post Office
Twin Brooks Post Office
United States Post Office
US Post Office

500, Main Avenue, Lake Norden, 57248, SD

Also in Watertown

Place of worship ()Fuel supplier ()Restaurant ()Fast food restaurant ()Elementary school ()Private sector bank ()Convenience store ()Auto repair shop ()

Post office in nearby cities

Beckley ()Charleston ()Salisbury ()Williamsburg ()Rutland ()Ottumwa ()Lincoln ()Clarksburg ()

Frequently asked questions

How many post offices are in Watertown?

AgentData lists 18 post offices in Watertown as of May 2026.

Which post offices in Watertown have a website?

0 of 18 post offices in Watertown have a website with verified contact details.

Is this data free?

Yes. AgentData is completely free — no credit card, no trial period, no paid tiers.

How is this data collected?

Business listings are sourced from OpenStreetMap and verified through our web crawler, which checks websites for email addresses, phone numbers, and technology stacks.

Access this data via API
GET /api/local-businesses?category=post-office&city=watertown-sd-us