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    Outpost Coffee

    4.4 (192 reviews)
    Closed 7:00 am - 9:00 pm
    Updated 2 months ago

    Order Outpost Coffee Takeout or Delivery

    Outpost Coffee Photos

    OUTPOST COFFEE ATMOSPHERE

    What's the vibe?
    Moderate noise
    Good for working
    Dogs allowed
    Outdoor seating

    Recommended Reviews - Outpost Coffee

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    Reviews With Photos

    Earl grey latte (spring menu 2026)
    Francisco M.

    There's a plaza parking to get here. Inside is sleek and chill. Seems like a great place to meet with a friend or some studying. The staff are nice. The drinks arrived at a good pace. They have some tasty looking pastries that unfortunately I didn't get to try. I got the earl grey latte. The drinks was smaller than expected, especially for the price. I did get the earl grey flavor occasionally. There were hints of the lavender. It was enjoy enough and not too sweet. And it wasn't too hot so you can drink right away. I'd like to try more of the drinks.

    Outside
    Ian A.

    I had an adequate experience at Outpost Coffee (Diamond Bar). I ordered the Ube-Ube Coffee ($7). It's two shots of espresso with sweet ube. The initial sip is refreshing, but the coffee flavor quickly fades. As time passes, the drink tastes like sugary cereal milk. I arrived at Outpost Coffee (Diamond Bar) on Friday (around 11:48AM). The parking lot is big but busy. Fortunately, I quickly found a spot. The sign says, "2 Hour Parking Only - All Day." Staff is polite. Staff quickly took my order and answered my questions. My coffee took three minutes and 25 seconds. As mentioned, I ordered the Ube-Ube Coffee ($7). The caffeine is soft but uplifting. The drink is not bitter nor runny. However, the flavor of sugar and milk dominates the cup. It's not a memorable drink, but it's not bad. On ambiance, Outpost Coffee (Diamond Bar) felt a little worn down and old. The crevices were dusty and the location felt a little messy. There's about three electrical outlet. The location also has customer internet with password; details are posted on the counter. Fortunately, Outpost Coffee (Diamond Bar) has many clean tables. There's about six small interior tables, one long curved counter, and one very long table. The ceiling is tall, so the location didn't feel cramped. Overall, Outpost Coffee (Diamond Bar) is not bad. It feels shabbily maintained, but there's utility. If already nearby, I lightly recommend 4.2 out of 5

    Miranda J.

    Everything was sooo great! The employees were inviting and the place was super cute & just a great vibe! The mocha was delicious! We also were swooning over the jalapeño cheddar bagel. It was so good that we got a to go order before leaving of more food, coffee, AND matcha Just really enjoyed the overall service, thank goodness for good baristas 11/10 recommend this place!!

    Menu as of 03/14/2026
    Yvette P.

    **MENU ATTACHED AS OF 03/14/26** Highlights: matcha was great and the indoor seating area has a lot of room! Great place for studying and catching up. There are some outlets available. Unfortunately the croissant I got was dry. Maybe we came on an off day? Just knocked off one star but hopefully I can try again next time I visit! I'd ideally like spots like these to have great baked goods as a little study snack. Parking is a little full but not impossible. Service was great! Baristas in front were very friendly and answered questions especially about the spring menu. Overall, I'd like to visit again especially for redemption for the baked goods.

    Spring 2026 Menu
    Zoey W.

    Such a beautiful space with lots of natural lighting. It seems perfect for a nice catch-up over coffee or work session. For studying, although there are a bunch of seats, there's only three charging ports, so beware! Everyone who helped us was very kind and knowledgeable. We went in the early morning, and we were asking a bunch of questions They met us with kindness and they seemed to want us to have exactly what we wanted. For the star of da show: grapefruit tonic! This drink is incredibly nostalgic for me, as I used to have it all the time in Asia when I was in high school. I have not found a replica until now! The espresso pairs perfectly with the tonic and grapefruit. I love love love that a hint of the grapefruit's bitterness is preserved, and it is just such a well rounded drink. We also got a banana caramel latte, which isn't up my alley but perfect for my bf. He said he was flabbergasted that he could distinctly taste both banana, caramel, and coffee in each sip. I cannot wait to come back and try their other drinks, but I have a new favorite spot.

    Earl Grey Latte, Ube-Ube latte
    Mandie L.

    overall: If the wifi was better, I'd come back again to study. Earl Grey Latte (3.7/5): this was one of their spring specials. I really couldn't taste the earl grey, instead I mainly tasted honey instead. It was also on the sweeter end. Ube-Ube Latte (4/5): The ube was pretty good and paired well with the coffee but the ube tasted a little artificial. seating: good amount of seating available with both window bar seating and tables. good for getting work done. wifi: they do offer free wifi but it was very slow which made it hard to get work done. parking: plenty of parking in the plaza. bathroom: bathroom needs a code that u can get from the cashier but was clean and is in the main building.

    ube latte
    Kasandra C.

    i ordered their ube latte. i wanted to try something different compared to my usual cafe order of getting a matcha. this ube latte was $7 and i was pretty disappointed. it tasted like a regular latte, no ube taste at all. i might as well get the regular one. i did a caffeine pick me up and did do its job. i'm just more upset i paid $7 for a drink and it tasted dissapointing. plus they need to add more outlets in the store because i could only find three and they were all being used. anyways i probably would not come back again there's other cafes nearby that are prob way better.

    Menu
    Tiffany C.

    This replaced what previously was Mugs Coffee, and I liked how they redid the seating so it's more open spaced with plenty of bar seating for working. I just wish they had more outlets available and less stools. It was not too busy when I arrived at 2pm on a weekday, and it wasn't too loud which I appreciated for studying. I tried out their signature latte which came with a cream top, it was like a standard Einspanner drink. I'd come back here again if I was in the area

    Jay G.

    One of the reliable coffee shops in DB. I used to come here when it was still Mugs so i was surprised it changed to Outpost! However they did not disappoint. Food: 4/5 I ordered their iced matcha latte with signature foam top. The drink came out to around $7.50 or so. Pretty standard pricing for matcha and it tastes pretty good. Although i had only ordered the plain signature foam top i could taste a hint of banana flavor so im guessing the foam pitcher they used wasn't rinsed properly...? I also ordered a hot mocha latte with oat milk. Probably one of my favorite mocha lattes although the size of the drink is a bit disappointing considering the price. Service: 5/5 Service was great no complaints whatsoever. All staff were very kind. Ambiance:4/5 Great study spot with lots of natural lighting. There are plenty of seats but it gets filled often. I enjoyed the ambiance, feels very welcoming and comfortable.

    Seating area
    Ivy W.

    This new coffee shop replaced what used to be The Mugs. Honestly, I like the vibes a lot better. The interior is clean and simple. The service was quick and helpful. The cashier recommended the outpost latte amongst a couple other drinks. The drink itself is pretty good, not sure what it's made of but it tasted nutty. Great place to study/chill with friends. Didn't get any food but they also got food options in case you get hungry or smth.

    For February 2026
    April V.

    This is a decent spot to do work/study but there's not many outlets to charge The coffee was just okay but nothing that caught my tastebuds

    Inside the store
    Edwin C.

    I came here to try their coffee and it was pretty good. I ordered a hot mocha and taste was just perfect to me, better than Starbucks in my opinion. This cafe is a nice place for people to chat with friends or doing their self study. This seems like a popular place for young adults. Overall my experience was okay, would be back again.

    Oat Milk latte
    Vanessa C.

    Outpost coffee was a very nice place to have a meeting or study. There are big windows with lots of natural light. The coffee is really good and they have a variety to choose from. They also have pastries in the morning time.

    Hey waffles! Love waffles.

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    1 month ago

    Delicious coffee and pastries with short wait time. Very cute, clean, and modern place

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    10 months ago

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    Zachary K.

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    Page 2 of 5

    Ask the Community - Outpost Coffee

    Do they take cash as payment? Enjoyed the Mugs, but stopped going when they went cashless.

    Yes we take cash at Outpost Coffee.

    View All 2 Questions

    Tacitas Coffee

    Tacitas Coffee

    4.9
    (226 reviews)
    3.4 mi
    $$

    I recently discovered this small coffee shop off Diamond Bar Blvd after my work moved to Pomona…read more After missing my exit and devouring to rhe office I drove by this shop and decided to make a quick stop. Lo and behold I found that it is actually just right across from the freeway on ramp and just 1 exit from where I needed to be. The staff here is friendly abd the drink menu is small and unique. I have always ordered the iced Amorcita which is cinnamon, vanilla and orange peel and the drink really has great flavor. I have not tried any additional drinks as of yet but they have several unique options that really set them apart. The place is quite small but has a decent amount of seating inside and out and the prices are right in line with most shops in the area. I am a fan kf this place and will be a regular going forward with at least a couple visits per week. Check them out if you want something a bit unique and are in the area.

    Stopped here on my way to an estate sale -- its right off the freeway in Diamond Bar with its own…read moreshared parking lot. It was busy for a Saturday with several tables inside and on their outdoor patio. Staff was very friendly and welcoming. I ordered the casa dulce (dulce de leche) latte and a mini concha, and it was very good. Cute and fun neighborhood spot to chill with a cup of coffee.

    Photos
    Buzz'n Brew and Amorcita Latte
    Buzz'n Brew and Amorcita Latte
    Buzzin brew
    Buzzin brew
    Pumpkin salted maple ice coffee (I think I have the name wrong but delicious) Seasonal of course.

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    Pumpkin salted maple ice coffee (I think I have the name wrong but delicious) Seasonal of course.
    Margin Cafe Coffee Roasters

    Margin Cafe Coffee Roasters

    4.5
    (299 reviews)
    2.4 mi
    $$

    Was walking after my meal on a Saturday afternoon and stopped by Margin Cafe…read more Saw the Biscoff Latte and immediately wanted that. However I also saw a Butter Pecan Latte and was conflicted. The staff said their biscoff latte is their specialty so i decided to try that drink. It wasn't that sweet and it was bad. Inside is very nice, around 5-6 tables and a couch, with some bar seats near the door and a few benches as well.

    I went to Margin Roasters on a Sunday at around 10:30 AM. Looking for a good study spot with good…read morecoffee, pastries, and WiFi. A few of these expectations were met. For the pastries, it looked like a lot of the ones I was hoping from browsing online were not available. I ended up getting the biscoff cheesecake. It was on the sweeter side but it was very good. For the drink, I ended up getting the banana latte. Been on a streak of getting that lately so wanted to compare with other stores. I didn't get a lot of banana in the taste. At least it had an espresso shot for the caffeine fix and did not taste like the artificial banana. Nothing special there and stand out. For the interior, they had a few seating they primarily accommodated a few groups of four and two. I was able to grab a bench seat that had an outlet. However, there wasn't enough space for my laptop and the items I ordered. WiFi was available but it had a 90 minute limit. The store had a moderate noise level and stayed busy throughout the time that I was there. The service on the order was quick and they do bring it out to you. The store also has their own house espresso which was a medium dark roast. American Express is accepted as a payment option here. Overall, it was a decent work spot. If I come back, I'd prefer to try another drink and hope other pastries are available. Would recommend the biscoff cheesecake for those that want something sweet and the house coffee beans for those that like medium roasts.

    Photos
    Cold brew
    Cold brew
    Margin Cafe Coffee Roasters
    Margin Cafe Coffee Roasters

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    TP Tea

    TP Tea

    4.0
    (172 reviews)
    1.8 mi
    $$

    I came to charge my car and decided to give this tea spot a try because it looked incredibly busy…read more My thought was, it must be good, right? Luckily, I was right. I ordered the half sweet matcha with oat milk, and it was delicious. The portion size was generous, and despite how busy they were, my drink came out surprisingly fast. I loved that you can order from a touchscreen kiosk and easily customize your drink with all the available add ins. The menu is huge, but the digital ordering system makes it easy to browse and see all your options. The location itself is small with minimal seating, but it has a cute atmosphere and a great vibe. Overall, a solid spot for tea and matcha lovers, and I'd definitely come back to explore more of the menu.

    Convenient and Customizable -- A Solid Go-To My all-time…read morefavorite boba spot was Sunright Tea Studio, but unfortunately it's closed down, so I've been on the lookout for a replacement -- and this place has become my current go-to. What I love most here is the ordering experience. There are multiple large touchscreens where you can fully customize your drink -- sugar level, ice level, add-ons, substitutions, you name it. I almost always go for zero sugar, and the fact that I can do that easily is a huge plus for me. It's the kind of flexibility that modern boba shops should all offer. The portions are generous and the prices are reasonable, which is refreshing compared to some other spots in the area. Is it the most amazing boba I've ever had? Honestly, no -- but the ability to build your drink exactly the way you want it more than makes up for it. There's also a large display screen showing order status, so you always know when your drink is ready. It's a small touch, but it makes the whole experience feel smooth and stress-free. I'll be real though -- I probably drink more coffee from the Starbucks across the street than boba from here. At the end of the day, coffee feels like the healthier daily habit. But when I'm in the mood for something different, this place is where I'll be.

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    Interior
    Interior
    Creme brulee
    Creme brulee
    TP Tea

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    Dumbstruck Coffee - City of Industry

    Dumbstruck Coffee - City of Industry

    4.5
    (462 reviews)
    2.7 mi
    $$
    Locally owned & operated
    Free WiFi

    The matcha and the vibes were amazing, my only heads up for anyone going is that they were only…read moreaccepting cards for payment when I was there but that is the only thing that threw me off.

    i love this place so much!!…read more we've come by Dumbstruck multiple times now whenever we're on our way to spend $ @ Frank & Sons (lol), but i truly find myself looking more forward to spending $ on my silly little drink here :-) it's located in a big shopping center, so there's plenty of free parking. the shop itself is a good size, and there's a good amount of indoor seating (and it's cute in there!) + outlets if you wanna get some work done. staff is always SO kind and my drinks always come out pretty quickly, even when they're busy! so appreciative to the whole team!! some favorites: - double matcha einspanner: guys this drink is literally PERFECT!! their matcha tastes so delish and creamy, perfect umami, but also a pleasant sweetness from the matcha foam/cream! this is my go-to !! - hojicha einspanner: when i saw this on the menu i was so excited bc i'd never tried a hoji ein !! the nuttiness of the hojicha was so pleasant, it wasn't overly sweet, and truly this drink is just THAT girl! i go in between this and the double matcha ein everyyyy time not pictured: their pastries!! we've had a bunch of their salt breads (strawberry cream, ham & cheese, everything salt bread) - and every single one is a 10/10. get there early bc they do run out of these pretty quickly!!!!! cannot wait for my next visit!! thx to the whole team for being so great!!

    Photos
    Dumbstruck Coffee - City of Industry
    Dumbstruck Coffee - City of Industry
    Dumbstruck Coffee - City of Industry

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    Outpost Coffee - coffee - Updated June 2026

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