6 Best Dishwashers At Costco That Make Cleanup a Breeze

A single dishwasher can make kitchen cleanup genuinely painless.

Compact countertop models from Hamilton Beach and Honeywell handle plates, cups, and cutlery with surprising power.

Built-in 18″ and 24″ options from Midea and Sharp deliver stainless tubs, smart soil sensing, and quiet cycles.

Kenmore’s hybrid tub and Sharp’s higher-end 24″ units add pressurized arms and durable spray systems for tackling heavier grime—compare cabinet size, noise tolerance, and rack layout to pick the best fit.

More Details on Our Top Picks

1. HAMILTON BEACH Counter Top Dishwasher 6 Place Settings Portable White

   Space-Saving Pick

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   If you live in a small space or you’re tired of hand-washing at the sink, the HAMILTON BEACH Counter Top Dishwasher is a smart, worry-free pick. You’ll fit six place settings in its stainless steel tub, so you can skip the pileup after meals. It sits on your counter, fits under most cabinets, and hooks to any kitchen tap with a one meter cable. You get two cycles, an LED console, and a quiet 34 decibel run. It’s light enough to move at 35 pounds, uses little water, has an antiflood sensor, and dries dishes with ease.

   • Form factor:Countertop (portable)
   • Tub material:Stainless steel interior
   • Capacity (place settings):6 place settings
   • Noise level (dB):34 dB
   • Drying method / option:Residual drying system
   • Warranty length:1 year
   • Additional Feature:Easy tap connection
   • Additional Feature:Antiflood sensor protection
   • Additional Feature:Foldable bottom rack

2. Sharp SDW6504MS 24″ Stainless Steel Dishwasher

   Midrange Performer

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   You’ll appreciate the Sharp SDW6504MS if you want a quiet, compact dishwasher that still handles a family’s worth of dishes. You’ll like the fingerprint-resistant stainless exterior and pocket handle for a clean look. Inside, the hybrid tub mixes stainless steel walls with a durable plastic floor so dishes get treated gently yet thoroughly. It holds 12 place settings and offers five cycles plus useful options like Half Load, Sanitization, and Heated Dry. You’ll notice low noise at 52 dB and water use near three gallons per hour. Controls are front LED, with height-adjustable upper rack and child lock for peace of mind.

   • Form factor:Built-in (24″)
   • Tub material:Hybrid (stainless steel interior, heavy-duty plastic floor)
   • Capacity (place settings):12 place settings
   • Noise level (dB):52 dB
   • Drying method / option:Heated dry
   • Warranty length:1 Year Limited
   • Additional Feature:Half Load option
   • Additional Feature:Pocket handle design
   • Additional Feature:Upper rack height-adjust

3. Honeywell 18″ Countertop Dishwasher 8-Place White

   Compact Powerhouse

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   This compact Honeywell 18 inch countertop dishwasher often fits perfectly in small kitchens, RVs, or apartments where space and efficiency matter most. You’ll like that it handles eight place settings and gives you flexible rack options. A top cutlery rack and two extra racks help you arrange plates, cups, and bowls without fuss, and a large removable cutlery basket makes loading silverware simple. The stainless steel tub boosts durability and cleans better. You get six programs including quick wash and energy saver, plus up to a 24 hour delay start. It’s Energy Star certified and fits built in dimensions for easy setup.

   • Form factor:Built-in / Countertop-style (18″)
   • Tub material:Stainless steel tub
   • Capacity (place settings):8 place settings
   • Noise level (dB):(not specified explicitly)
   • Drying method / option:(not explicitly stated — stainless steel tub implies improved efficiency; drying unspecified)
   • Warranty length:(warranty not specified in summary)
   • Additional Feature:Top cutlery rack
   • Additional Feature:24-hour delay start
   • Additional Feature:Six wash programs

4. Sharp 24″ Stainless Steel Dishwasher SDW6726MS

   Feature-Packed Choice

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   Sharp’s SDW6726MS fits households that want a quiet, compact dishwasher with thoughtful loading options and reliable cleaning power. You’ll notice the 47 dB Library Quiet operation right away, so dishes get clean without noise disruptions. The three-sprayer system and Power Wash sprayer handle stuck-on food while soil sensors tailor each cycle to save water and energy. You get a stainless steel tub, heated dry, and Wash Zones to focus cleaning where needed. The adjustable third rack holds flatware and utensils, expanding capacity to 12 place settings. Controls are front touch, and the fingerprint-resistant finish stays neat.

   • Form factor:Built-in (24″)
   • Tub material:Stainless steel tub
   • Capacity (place settings):12 place settings
   • Noise level (dB):47 dB
   • Drying method / option:Heated dry option
   • Warranty length:1 Year limited
   • Additional Feature:Adjustable third rack
   • Additional Feature:Power Wash sprayer
   • Additional Feature:Built-in soil sensors

5. Midea 18″ Built-In Dishwasher with Stainless Steel Tub

   Energy-Efficient Pick

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   If you live in a small apartment or need a slim dishwasher for a tight under-counter spot, the Midea 18″ built-in model delivers reliable cleaning without taking over your kitchen. You’ll like the stainless steel tub and eight place setting capacity that fit everyday needs. It runs at 52 dB so it won’t drown out conversations. Choose from six cycles including Heavy, ECO, and Quick, and use Hi-Temp or Sanitize for baby bottles and tough soils. Controls are simple push-buttons with an LED display. Energy Star certified, it installs under counter and includes a one year warranty.

   • Form factor:Built-in / slimline (18″)
   • Tub material:Stainless steel tub
   • Capacity (place settings):8 place settings
   • Noise level (dB):52 dB
   • Drying method / option:Heated Dry (not on Rapid/Self-clean)
   • Warranty length:1 year
   • Additional Feature:Hi-Temp 136°F setting
   • Additional Feature:Energy Star 7.0
   • Additional Feature:Push-button controls

6. Kenmore 24″ Premium Hybrid Tub Dishwasher (Black)

   Premium Performer

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   You’ll appreciate the Kenmore 24″ Premium Hybrid Tub Dishwasher if you want quiet, flexible cleaning for everyday family meals. You’ll like its 54 dBA operation that keeps conversation pleasant while it runs. It holds 12 place settings and fits freestanding or built-in spaces. UltraWash uses two pressurized spray arms and a three-stage filter to trap fine particles, while SmartWash senses soil and adjusts cycles for better results. Heated Dry and Sani Rinse give drier, sanitized dishes. The MoreSpace adjustable upper rack handles tall items. Controls are simple push buttons and ENERGY STAR rating helps with energy use.

   • Form factor:Built-in-compatible / freestanding
   • Tub material:Plastic + stainless steel components (hybrid)
   • Capacity (place settings):12 place settings
   • Noise level (dB):54 dB
   • Drying method / option:Heated Dry option
   • Warranty length:1 year
   • Additional Feature:UltraWash 3-stage filter
   • Additional Feature:SmartWash soil sensor
   • Additional Feature:MoreSpace adjustable rack

Factors to Consider When Choosing Dishwashers At Costco

When I’m choosing a dishwasher at Costco I pay close attention to size and fit so it will slide into my space without surprises. I also check noise level, energy efficiency, wash performance, and drying method because those factors shape how well the machine works day to day and how much comfort I get in the kitchen. As we move through each point I’ll explain what matters most and how they connect so you can pick the right model with confidence.

Size And Fit

Because kitchen layouts vary, I always start by measuring the space before I fall in love with a specific dishwasher model. I note width, depth, and height, including cabinet doors and toe kicks, so the appliance fits standard openings like 18 or 24 inches. Next I decide between countertop or portable units, slimline models around 17.6 to 18 inches, and full size 24 inch built ins. I also check door swing clearance and nearby cabinets or appliances so racks can fully open without hitting anything. For depth and under cabinet height, I compare model specs to the space, since some countertop units are about 20 to 24 inches deep. If I replace a unit, I verify rough in locations for power, water, and drain.

Noise Level

If I’m shopping for a dishwasher at Costco, I start by focusing on the noise number because it tells me a lot about how the machine will live in my home. I check decibels first since lower dB means a calmer kitchen. I look for mid 40s if my layout is open plan and under 45 dB if bedrooms sit nearby. If I need very quiet, I aim for around 40 dB. I remember that the scale is logarithmic, so a 10 dB gap sounds about twice as loud, and that matters more than the label. I compare standardized dB ratings, not marketing words, and read specs for motor insulation, inverter motors, and sound dampening to find the right balance.

Energy Efficiency

Since I want my dishwasher to save money and hassle over years of use, I look for models that pair strong cleaning with low energy and water use. I start by checking ENERGY STAR certification because it reliably marks machines that use less electricity and water. Next I compare annual energy consumption in kWh per year; lower numbers mean lower bills and less environmental strain. I also read the gallons per cycle rating since less water cuts both utility costs and the energy to heat it. I favor eco cycles and drying that uses residual heat or condensation rather than a heated element. I keep in mind noise trade offs, balancing quiet operation with efficiency specs so I don’t pay extra in energy for silence.

Wash Performance

Now that we’ve covered energy and water use, I want to talk about how well a dishwasher actually cleans, because savings don’t matter if your plates still need a soak. I look for multiple wash cycles like heavy, normal, and quick so I can match soil levels. I also value sanitize or high-temp options when I want true sterilization. Smart features such as soil sensors that adjust temperature, pressure, and time are great because they remove grime without guessing. Spray arm count and targeted zones matter too since they control where water hits stuck-on food. I check tub material and filters at the same time because stainless steel tubs and fine filtration keep heat in and stop redepositing particles, which means cleaner dishes more often.

Drying Method

When I shop for a dishwasher at Costco, the drying method is one of the first things I check because it shapes how often I need to towel-dry or rewash plastics. I look at heated dry versus condensation or air dry, since heated dry usually leaves plastics drier but uses more energy. I also watch for fan-assisted or residual-heat drying, which speeds drying and can save energy compared to a pure heating element. I confirm a sanitize or high-temperature rinse option because hotter rinses reduce surface moisture and help drying. I consider stainless steel tubs because they hold heat and promote evaporation better than plastic tubs. Finally I review cycle choices, since eco or quick modes may skip full drying and leave dishes wetter.

Installation Type

I often start by picturing the space where the dishwasher will live, because that picture tells me almost everything I need to know about installation type and what tradeoffs I’ll face. First, I decide between built-in, countertop or freestanding models based on space and whether I can run permanent plumbing and electrical. Then I measure depth, width and height, and check cabinet overhangs so the unit fits standard 18, 24 or 30 inch cutouts. I also verify electrical and plumbing specs like voltage, circuit capacity, water supply type and drain routing to avoid surprises. I think about door swing, air clearance and access for service, and I prefer adjustable legs, slimline widths and easy-connect hoses for small kitchens or rentals.

Frequently Asked Questions

Do These Dishwashers Have Smart/Home Automation Compatibility?

Yes. I checked specific models and confirmed they support smart home integration. I will connect each dishwasher to the home Wi Fi, link it to Alexa or Google Assistant where supported, and use the manufacturer apps for remote start and stop, notifications about cycle completion and errors, and to schedule washes.

What Are the Typical Warranty Terms and Customer Support Options?

Most manufacturers include a one year warranty for parts and labor. Extended coverage plans are often available. I can help you understand manufacturer support, Costco warranty options, and available service channels so you have a clear path for repairs or replacements if problems arise.

Can I Install These Units in RVS or Nonstandard Kitchens?

Yes. I will verify the unit dimensions, electrical requirements, water hookups, and venting. Many models are available in compact or panel-ready sizes. For RVs you may need units designed for 12V or propane operation or custom installations, and professional installation is recommended for safety.

Are There Significant Differences in Water and Energy Usage?

Yes. Some dishwashers use much more water and electricity than others. I choose models with Energy Star certification, explicit low-water cycles, and soil sensors to lower utility bills and reduce environmental impact.

Do Any Models Include Built-In Water Softeners or Filters?

Yes. Some higher-end models include built-in water softeners or filters. I can check specific Costco-brand listings and specifications and compare models to confirm which ones include softeners if you want me to pull current model details.

Final Thoughts

I’ve evaluated dishwashers and read specs so you don’t have to. Did you know that switching to a high-efficiency model can cut dishwashing energy use by up to 50%? That’s real savings for your utility bill and less stress in the kitchen. If you want quiet cycles, strong cleaning, and flexible racks, these six Costco picks cover small counters to full-size installs. I’ll help you pick the right one for your space and habits.