Real pricing from verified Black Diamond-area lawn care contractors — updated for 2026.
Lawn Mowing in Black Diamond, WA typically costs $35–$145 per visit in 2026, depending on lot size and terrain. Most Black Diamond property owners on a weekly schedule (April–October) pay the mid-range tier. Get an exact, itemized price for your address in under 60 seconds with an instant Quotly quote.
| Lot Size | Per Visit | Monthly (4×) |
|---|---|---|
| Small (under 3,000 sq ft) | $35 – $50 | $140 – $200 |
| Average (3,000 – 5,000 sq ft) | $45 – $65 | $180 – $260 |
| Large (5,000 – 10,000 sq ft) | $60 – $95 | $240 – $380 |
| Extra-large (10,000+ sq ft) | $80 – $145 | $320 – $580 |
Prices reflect 2026 rates from verified contractors serving the 98010 ZIP code area. Need an exact number? Get an instant Black Diamond lawn mowing quote based on your actual lot.
Black Diamond has seen rapid growth with large new-construction lots. Newer developments like Ten Trails feature generous yards that require more mowing time.
Weekly mowing during the growing season (April – October) is most cost-effective.
Black Diamond receives about 48 inches of rain annually. The semi-rural setting and higher elevation mean lush growth in spring.
Edging, trimming, bagging, fertilization, and aeration are common add-ons. Bundling saves 15-25%.
See lawn mowing costs in Maple Valley, WA, Enumclaw, WA, and Covington, WA.