Increasing Potassium - any food suggestions

bananas

potatoes (sweet and white)

make a banana, or strawberry banana smoothie!

Banana!

zucchini, summer squash and onion

Coconut water is a really good one! And potatoes

Veggies and fruits are full of it

A jacket potato has more potassium than a banana if you're looking for a rich source

Sweet Potatoes... definitely are my favorite but here is a listing from searching:
http://www.healthaliciousness.com/articles/food-sources-of-potassium.php

#1: Dried Herbs
Long used for medicinal purposes, herbs are packed with nutrients and potassium is no exception. Dried Chervil contains the most potassium with 4.7g (135% RDA) per 100g serving, or 95mg (3% RDA) per tablespoon. It is followed by Dried Coriander (3% RDA) per Tblsp, Dried Parsley (2% RDA), Dried Basil, Dried Dill, Dried Tarragon, Ground Turmeric, Saffron, and finally Dried Oregano with 50mg (1% RDA).
#2: Avocados
Avocados are great when made into guacamole or in a salad. 100 grams will provide 485mg of potassium or 14% of the RDA. That is 1.1g (32% RDA) in one cup pureed, and 975mg (28% RDA) in a single avocado (201 grams).
#3: Paprika and Red Chili Powder
Either paprika or red chili powder add a nice kick to any dish, and with all the potassium they provide you have good reason to start adding them. Paprika provides the most potassium with 2.3g (67% RDA) per 100 gram serving, or 164mg (5% RDA) per tablespoon. Chili powder will provide 1.9g (55% RDA) per 100 gram serving or 153mg (4% RDA) per tablespoon.
#4: Cocoa Powder and Chocolate
Dark chocolate is an excellent source of iron and zinc in addition to potassium. Pure cocoa powder without any fat, milk, or sugar, provides the most potassium with 1.5 grams (44% RDA) in a 100g serving, or 1.3g (37% RDA) per cup, and 76mg (2% RDA) per tablespoon. Unsweetened baking chocolate provides 830mg (24% RDA) per 100 gram serving or 241mg (7% RDA) per square. Most sweetened milk chocolates will provide around 272mg (11% RDA) per 100 gram serving, and 164mg (5% RDA) per bar (1.5oz).
#5: Dried Apricots, Prunes, Zante Currants, and Raisins
Most common as a snack, dried apricots and prunes can also be chopped and served in a salad. A good source of fiber and many other vitamins, apricots provide 1.9g (53%RDA) of potassium per 100g serving (about 20 dried apricots). Prunes provide 1g (30% RDA) per 100g serving, or 1.4g (40% RDA) per cup. Zante currants are really a type of grape and taste very similar to raisins. Zante currants provide 892mg (25% RDA) of potassium per 100g serving, or 1.3g (37% RDA) per cup. Raisins provide almost the same amount with 825mg (24% RDA) per 100 gram serving, or 1.2g (24% RDA) per cup.
#6: Pistachios and Other Nuts
Pistachios are a delicious snack, and a great addition to salads. 100 grams (~3/4cup) will provide 1g (30% RDA) of potassium. Other nuts high in potassium include Beechnuts (29% RDA per 100g), Ginko nuts (29% RDA), Chestnuts (28% RDA), Almonds (21% RDA), Hazelnuts (19% RDA), Cashews (18% RDA), Pine nuts (17% RDA), Coconuts (16% RDA), and Walnuts (15% RDA).
#7: Seeds (Pumpkin, Squash, Sunflower, and Flax)
A popular food in the Middle East and East Asia pumpkin and squash seeds contain about 919mg (26% RDA) of potassium per 100g serving, 588mg (17% RDA) per cup. If you can't find these in your local supermarket you will surely find them in Middle Eastern or East Asian specialty stores. Alternatively, you can also save any pumpkin and squash seeds you have and roast them in your oven. The seeds are typically eaten by cracking the outer shell and eating the seed inside. Sunflower seeds are also a good source of potassium, providing 850mg (24% RDA) per 100 gram serving, or 1.1g (31% RDA) per cup. Flax seeds provide 813mg (23% RDA) of potassium per 100 gram serving, or 1.4g (39% RDA) per cup, and 81mg (2% RDA) per tablespoon.
#8: Fish (Pompano, Salmon, Halibut, Tuna)
Fish has many health benefits and is a great source of potassium. Pompano provides the most with 636mg (18% RDA) per 100 gram serving, or 540mg (15% RDA) per fillet (3 ounces, 85 grams). It is followed by Salmon which provides 534mg (15% RDA) per 3 ounce serving, Halibut, Yellow Fin Tuna, Lingcod, Mackerel, Anchovies, Herring, Cod, Snapper, Rockfish, Tilefish, Grouper, and finally Trout with 394mg (11% RDA) in a 3 ounce serinvg. Cooking fish with dry heat is the best way to preseve the potassium content.
#9: Beans
White beans provide the most potassium with 561mg (16% RDA) per 100 gram serving, 1g (29% RDA) per cup cooked. White beans are followed by Adzuki Beans, Soy Beans, Lima Beans, Pinto Beans, Kidney Beans, Great Northern Beans, Navy Beans, Pigeon Peas, Cranberry (Roman) Beans, French Beans, Lentils, Split Peas, Black Beans, Hyancinth, and finally Yardlong Beans with 539mg (15% RDA) per cup cooked.
#10: Dates (Medjool)
Dates are great as a snack, as an addition to fruits salads, or even savory stews. Medjool dates provide 696mg (20% RDA) per 100 gram serving, or 167mg (5% RDA) in a single date.

My favorite sources are milk, tomatoes, potatoes, and almonds.

Remember, potassium is not required on food labels, so you probably get a lot more than you think.