
PACMLS IDX Websites for Washington REALTORS®
A direct feed from Pacific Regional MLS (PACMLS), built into a fast, professional website for agents and brokers across Southeast Washington.

A direct feed from Pacific Regional MLS (PACMLS), built into a fast, professional website for agents and brokers across Southeast Washington.
Your OSI IDX website connects directly to the Pacific Regional MLS (PACMLS) feed, giving your visitors real, current listings from across Southeast Washington instead of a stale or third-party database. Whether you work the Tri-Cities, the Lower Yakima Valley, or Whitman County, your site reflects the same inventory your MLS shows you. All OSI IDX real estate websites are built to load fast, rank well, and convert visitors into leads, so you spend less time managing your website and more time closing deals.
Trusted by 1,000+ REALTORS® & Brokers
A direct PACMLS feed is only part of the equation. Here’s what sets an OSI IDX website apart from other PACMLS IDX vendors:
How often are listings updated on my PACMLS IDX website?
Your OSI IDX website pulls listings directly from the PACMLS feed and refreshes automatically every 10 minutes, so buyers always see current inventory.
How long does it take to launch my PACMLS IDX website?
Most PACMLS IDX websites launch in 5–7 business days, depending on your content and design preferences.
How much does the PACMLS IDX feed cost?
The PACMLS IDX feed is $25/month. See full pricing details
What areas does PACMLS cover?
PACMLS covers five counties in Southeast Washington – Benton, Franklin, Garfield, Whitman, and Yakima – including the Tri-Cities, the Lower Yakima Valley, and the Palouse region around Pullman.
Do I need to belong to one of PACMLS’s member associations?
Yes. PACMLS access requires membership with a participating association – Tri-City, Lower Yakima Valley, or Whitman County Association of REALTORS® – through a participating broker.
Is PACMLS the same as Northwest MLS (NWMLS)?
No. PACMLS is a separate, independent regional MLS serving Southeast Washington. Northwest MLS covers the Puget Sound side of the state, and Spokane runs its own separate system.
PACMLS serves REALTORS® and brokers across five counties in Southeast Washington: Benton, Franklin, Garfield, Whitman, and Yakima. That footprint runs from the Tri-Cities (Kennewick, Richland, Pasco, and West Richland) through the Lower Yakima Valley (Sunnyside, Grandview, Mabton, and Prosser) and into the Palouse region around Pullman and Colfax in Whitman County. As Washington’s first REALTOR®-owned regional MLS, PACMLS gives agents throughout the Columbia Basin one shared, reliable source of listing data.
These are the REALTOR® Associations that make it possible:
Join Southeast Washington agents who’ve made the switch to a faster, better PACMLS IDX REALTOR® website. See what’s included


