Washington Unit 520 Mule Deer Hunting Guide

Washington Unit 520 is a general-season mule deer unit spanning 191,034 acres, with a elevation range running from just 46 feet up to 5,394 feet — one of the more dramatic vertical spreads hunters will find in a single Washington management unit. For hunters researching Unit 520 specifically, the most important fact to understand up front is this: antlered mule deer here are primarily taken during the general season, not through a competitive draw. That distinction matters enormously for how hunters should plan their season and their expectations.

This is not a wilderness unit. There's no designated wilderness acreage in Unit 520, and public land makes up only 15% of the total acreage — meaning the overwhelming majority of this unit sits in private ownership. That single data point should shape nearly every planning decision a hunter makes here, from scouting strategy to whether DIY access is even realistic without landowner permission or leased ground.

Unit Overview

Unit 520 combines a general season structure for antlered or either-sex mule deer with limited-quota draw hunts layered on top — though the available data doesn't specify the sex restrictions on those draw tags. That's an important nuance: hunters assuming the draw hunts are the primary path to a mule deer buck here would be working from a false premise. The general season is where most antlered harvest activity happens, and it's open to any hunter who buys the appropriate license — no draw required for that opportunity.

The low-elevation floor (46 feet) combined with a peak near 5,400 feet suggests a unit that transitions from valley-bottom terrain to foothill country, though specific terrain descriptions like forest type, drainage patterns, or slope character aren't detailed in the available data beyond the acreage and elevation figures. With 191,034 total acres, this is a sizable unit, but hunters need to recognize that only a fraction of that ground is accessible without private land permission.

Harvest Success Rates

HuntPilot's harvest data for Unit 520 covers five recent seasons and shows a unit with consistent hunter pressure and moderate, somewhat variable success rates:

• 2025: 1,548 hunters, 500 harvested, 32% success
• 2024: 1,487 hunters, 522 harvested, 35% success
• 2023: 1,652 hunters, 509 harvested, 31% success
• 2022: 1,542 hunters, 364 harvested, 24% success
• 2021: 1,762 hunters, 468 harvested, 27% success

A few patterns stand out. First, hunter numbers have stayed in a fairly narrow band — roughly 1,500 to 1,750 hunters per year — indicating this unit draws a stable, consistent crowd rather than wild swings in pressure. Second, success rates have trended upward over the most recent three years, climbing from 24% in 2022 to 35% in 2024 before settling at 32% in 2025. That's a meaningful improvement and suggests either better deer availability, more favorable weather/visibility during recent seasons, or some combination of both.

It's worth noting these harvest figures represent unit totals and aren't broken out by specific hunt type (general season versus limited-quota draw) in the data provided. Hunters should not assume the 30%+ success rates uniformly apply to every hunt code within the unit — but as a unit-wide baseline, a success rate in the low-to-mid 30% range across recent years is a reasonably solid indicator for a general-season mule deer unit in Washington, a state not generally known for high mule deer densities statewide.

Trophy Quality

Trophy record data for the counties overlapping Unit 520 shows a limited history of trophy-class entries. This doesn't mean good bucks aren't taken here — it means the record-book representation from this area is thin compared to units with more established trophy pedigrees. Hunters chasing a wall-hanger as their primary goal should calibrate expectations accordingly: Unit 520 appears to be more of a solid opportunity unit than a unit with a track record of producing exceptional, record-class bucks.

It's also worth remembering that record-book entries are logged at the county level, not the unit level, so any trophy history attributed to this area is shared across neighboring units that fall within the same counties — the specific animals could have come from anywhere within that broader footprint. Given the limited trophy history here, hunters should treat Unit 520 primarily as a numbers-and-access unit rather than a trophy destination, while understanding that individual mature bucks can and do turn up in any unit regardless of record-book representation.

Access & Terrain

This is the section of the Unit 520 picture that demands the most attention from hunters planning a trip. With only 15% public land, the vast majority of this 191,034-acre unit is privately held. That's a critical access constraint — DIY hunters cannot assume they'll find open public ground to roam. Realistic planning here means identifying the specific public parcels (state or federal) that exist within that 15%, securing permission on private ground, or exploring leased-access programs where available.

Forum discussion around Washington mule deer hunting broadly echoes this access challenge — hunters moving to Washington from other states with more public land (Texas, New Mexico were mentioned in hunter discussions) consistently note that Washington's mule deer units require more groundwork on access than they're used to. That theme holds true for Unit 520 specifically given its public land percentage.

There's no wilderness acreage in this unit, so there are no wilderness-specific access restrictions or guide requirements to account for. The elevation range (46 to 5,394 feet) implies hunters could encounter everything from low valley terrain to higher foothill country within the same unit boundary, which may spread deer across different habitat types depending on season timing and weather. Beyond these basics, specific terrain character — vegetation type, road density, drainage layout — isn't detailed in the available data, so hunters should use mapping tools to study the public parcels directly rather than relying on assumptions.

Hunters using HuntPilot's mapping tools can overlay the public land boundaries within Unit 520 to identify exactly where that 15% sits relative to access points, which is the essential first step before investing time in on-the-ground scouting.

HuntPilot Analysis: Is Unit 520 Worth Applying For?

Based on the data available, Unit 520 presents a mixed but honest picture. The positives: this is a general-season unit, meaning hunters don't need to win a competitive draw to pursue an antlered mule deer here — that alone makes it far more accessible than many Western mule deer units. Harvest success rates have also shown a clear improving trend, moving from 24% in 2022 to 35% in 2024, with 2025 holding at a respectable 32%. For a general-season unit, those numbers are solid and suggest hunters willing to put in the work have a reasonable chance of connecting.

The significant caveat is access. At just 15% public land, this unit requires hunters to either secure private land permission, work the limited public parcels hard, or look into leased-access programs. Hunters expecting wide-open public land to roam, the way they might in many Rocky Mountain unit, will be disappointed. This unit rewards hunters who do their homework on landownership before the season opens, not during it.

On trophy potential, the limited record-book history in the surrounding counties means Unit 520 should be approached as an opportunity-and-meat unit rather than a trophy-buck destination. Hunters whose primary goal is a chance at a mature, record-class buck may want to look elsewhere or treat any truly big buck taken here as a bonus rather than an expectation.

Bottom line: Unit 520 is worth considering for hunters who value general-season accessibility and solid, improving success rates, and who are willing to do the legwork on private land access given the low public land percentage. It's less compelling for hunters whose primary objective is trophy quality, where the data simply doesn't support strong expectations.

How to Apply

Unit 520 operates under a general season framework for its primary antlered/either-sex mule deer opportunity, meaning resident and nonresident hunters alike can typically purchase the appropriate deer license and hunt this unit without going through a competitive draw for that portion of the season. This is a meaningful structural advantage over draw-only units — there's no waiting on draw results to know whether a season will happen.

Layered on top of the general season, Unit 520 also has limited-quota draw hunts available, though the specific sex restrictions and structure of those draw tags aren't detailed in the data reviewed here. Hunters interested in those limited-quota opportunities should check the current application requirements directly.

Washington's licensing structure differs for residents and nonresidents in cost and in some license categories, but the application mechanics (where draw hunts are involved) apply similarly across residency status in terms of process. Application windows, deadlines, and fees change from year to year and should never be assumed from prior seasons.

For the current application calendar, license costs, and any available draw odds data for Unit 520's limited-quota hunts, see HuntPilot's Washington state page at /states/wa, or visit the Washington Department of Fish and Wildlife directly for official regulations.

Frequently Asked Questions

Is Unit 520 a draw-only unit for mule deer? No. Unit 520 has a general season for antlered or either-sex mule deer, meaning hunters can purchase a license and hunt without winning a draw. There are also limited-quota draw hunts available in the unit, but the general season is the primary path to an antlered buck here.

What is harvest success like in Unit 520? Recent harvest data shows success rates ranging from 24% to 35% across the 2021–2025 seasons, with a clear upward trend in the most recent three years. In 2024, 522 deer were harvested among 1,487 hunters (35% success), and 2025 saw 500 harvested among 1,548 hunters (32% success).

How big are the mule deer in Unit 520? Trophy record data for the counties overlapping this unit shows a limited history of trophy-class entries, suggesting Unit 520 is better characterized as a solid opportunity unit than a trophy destination. Hunters should calibrate expectations toward a quality hunting experience rather than targeting a record-class buck.

What is the access situation like in Unit 520? Access is a significant consideration here. Only 15% of the unit's 191,034 acres is public land, meaning the large majority is privately owned. DIY hunters need to plan around private land permission, identify the specific public parcels available, or explore leased-access options well before the season starts. There is no wilderness acreage in this unit.

Is Unit 520 worth applying for? For hunters focused on general-season accessibility and reasonably solid, improving harvest success rates (24–35% over the past five years), Unit 520 is a reasonable option — especially since an antlered buck doesn't require winning a draw. However, the limited public land (15%) demands serious access planning, and the thin trophy record history means this isn't a unit to target if a large, record-class buck is the primary goal.