What is the strongest flower in Contra Costa County right now?

Karamel Runtz Infused 7g by Coastal Sun at 42.4% THC, $25.90. Rankings use lab-tested THC percentage reported on live dispensary menus.

How does Strainline rank the strongest products?

Strictly by lab-tested THC percentage from each dispensary menu, highest first. Rankings carry no paid placement; potency and price are the only inputs.

Strongest weed in Contra Costa County

Updated October 19, 2026

As of October 19, 2026, the strongest flower in Contra Costa County is Karamel Runtz Infused 7g by Coastal Sun at 42.4% THC, priced $25.90, the highest lab-tested THC among 24 in-stock flower listings. The strongest vape cart is Horchata Liquid Diamonds Cartridge 1G by Jeeter at 94.8% THC.

Highest-THC flower· top 24

1
Karamel Runtz Infused 7g
Coastal Sun · Catalyst - Antioch LLC
42.4% THC$25.90Visit shop : Karamel Runtz Infused 7g at Catalyst - Antioch LLC
2
Karamel Runtz Infused 7g
Coastal Sun · Catalyst - Antioch
42.4% THC$25.90Visit shop : Karamel Runtz Infused 7g at Catalyst - Antioch
3
Blue Dream | 7g Infused Flower
Stiiizy · Otc San Pablo LLC
42.3% THC$40Visit shop : Blue Dream | 7g Infused Flower at Otc San Pablo LLC
4
Pineapple Express
Stiiizy · The Artist Tree
41.7% THC$31.50Visit shop : Pineapple Express at The Artist Tree
5
Pineapple Express
Stiiizy · The Artist Tree V LLC
41.7% THC$31.50Visit shop : Pineapple Express at The Artist Tree V LLC
6
Strawberry Cough
Stiiizy · The Artist Tree V LLC
41.4% THC$31.50Visit shop : Strawberry Cough at The Artist Tree V LLC
7
Strawberry Cough
Stiiizy · The Artist Tree
41.4% THC$31.50Visit shop : Strawberry Cough at The Artist Tree
8
DreamCake | 14g Infused Flower
Time Machine · Otc San Pablo LLC
41.2% THC$60Visit shop : DreamCake | 14g Infused Flower at Otc San Pablo LLC
9
KING LOUIS XIII 7G INFUSED SMALLS
Stiiizy · Ecwc Partners Inc
41.1% THC$39Visit shop : KING LOUIS XIII 7G INFUSED SMALLS at Ecwc Partners Inc
10
Pink Acai | 14g Infused Flower
Time Machine · Otc San Pablo LLC
40.9% THC$60Visit shop : Pink Acai | 14g Infused Flower at Otc San Pablo LLC
11
Pink Acai | 7g Infused Flower
Stiiizy · Otc San Pablo LLC
40.9% THC$40Visit shop : Pink Acai | 7g Infused Flower at Otc San Pablo LLC
12
Sky OG
Stiiizy · The Artist Tree V LLC
40.8% THC$45Visit shop : Sky OG at The Artist Tree V LLC
13
Sky OG
Stiiizy · The Artist Tree
40.8% THC$45Visit shop : Sky OG at The Artist Tree
14
CEREAL MILK 7G INFUSED SMALLS
Stiiizy · Ecwc Partners Inc
40.8% THC$39Visit shop : CEREAL MILK 7G INFUSED SMALLS at Ecwc Partners Inc
15
Skywalker OG | 7g Infused Flower
Stiiizy · Otc San Pablo LLC
40.6% THC$40Visit shop : Skywalker OG | 7g Infused Flower at Otc San Pablo LLC
16
Purple Punch
Stiiizy · The Artist Tree V LLC
40.5% THC$31.50Visit shop : Purple Punch at The Artist Tree V LLC
17
Purple Punch
Stiiizy · The Artist Tree
40.5% THC$31.50Visit shop : Purple Punch at The Artist Tree
18
Strawnana Mac | 7g Infused Flower
Coastal Sun · Otc San Pablo LLC
40.4% THC$27Visit shop : Strawnana Mac | 7g Infused Flower at Otc San Pablo LLC
19
Strawberry Mango
Stiiizy · The Artist Tree V LLC
40.4% THC$31.50Visit shop : Strawberry Mango at The Artist Tree V LLC
20
Strawberry Mango
Stiiizy · The Artist Tree
40.4% THC$31.50Visit shop : Strawberry Mango at The Artist Tree
21
BLUE DREAM 7G INFUSED SMALLS
Stiiizy · Ecwc Partners Inc
40.4% THC$39Visit shop : BLUE DREAM 7G INFUSED SMALLS at Ecwc Partners Inc
22
STRAWBERRY MANGO 7G INFUSED SMALLS
Stiiizy · Ecwc Partners Inc
40.2% THC$39Visit shop : STRAWBERRY MANGO 7G INFUSED SMALLS at Ecwc Partners Inc
23
Watermelon Splash | 14g Infused Flower
Time Machine · Otc San Pablo LLC
40.2% THC$60Visit shop : Watermelon Splash | 14g Infused Flower at Otc San Pablo LLC
24
STRAWBERRY COUGH 7G INFUSED SMALLS
Stiiizy · Ecwc Partners Inc
40.2% THC$39Visit shop : STRAWBERRY COUGH 7G INFUSED SMALLS at Ecwc Partners Inc

Highest-THC vape carts· top 24

1
Horchata Liquid Diamonds Cartridge 1G
Jeeter · Catalyst - Antioch
94.8% THC$24Visit shop : Horchata Liquid Diamonds Cartridge 1G at Catalyst - Antioch
2
Horchata Liquid Diamonds Cartridge 1G
Jeeter · Catalyst - Antioch LLC
94.8% THC$24Visit shop : Horchata Liquid Diamonds Cartridge 1G at Catalyst - Antioch LLC
3
LIT LYCHEE 1G ALL IN ONE
Papa's Herb · Ecwc Partners Inc
94.8% THC$35Visit shop : LIT LYCHEE 1G ALL IN ONE at Ecwc Partners Inc
4
SKYWALKER OG 1G ALL IN ONE
Papa's Herb · Ecwc Partners Inc
94.8% THC$35Visit shop : SKYWALKER OG 1G ALL IN ONE at Ecwc Partners Inc
5
PINA COLADA 1G DIAMONDS ALL IN ONE
Jeeter · Ecwc Partners Inc
94.8% THC$40Visit shop : PINA COLADA 1G DIAMONDS ALL IN ONE at Ecwc Partners Inc
6
BLUEBERRY ZLUSHIE 1G ALL IN ONE
Papa's Herb · Ecwc Partners Inc
94.7% THC$35Visit shop : BLUEBERRY ZLUSHIE 1G ALL IN ONE at Ecwc Partners Inc
7
ORANGE CREAMSICLE 1G ALL IN ONE
Papa's Herb · Ecwc Partners Inc
94.6% THC$35Visit shop : ORANGE CREAMSICLE 1G ALL IN ONE at Ecwc Partners Inc
8
STRAWBERRY COUGH 1G ALL IN ONE
Papa's Herb · Ecwc Partners Inc
94.5% THC$32Visit shop : STRAWBERRY COUGH 1G ALL IN ONE at Ecwc Partners Inc
9
JEETER - LIQUID DIAMONDS VAPE - GELATO - 1G
Jeeter · Sgi Pacheco LLC
94.1% THC$15.57Visit shop : JEETER - LIQUID DIAMONDS VAPE - GELATO - 1G at Sgi Pacheco LLC
10
Orange Creamsicle
WAVVY Supply Co · The Artist Tree
94% THC$29.40Visit shop : Orange Creamsicle at The Artist Tree
11
Orange Creamsicle
WAVVY Supply Co · The Artist Tree V LLC
94% THC$29.40Visit shop : Orange Creamsicle at The Artist Tree V LLC
12
Sugar Plum Liquid Diamonds Cartridge 1G
Jeeter · Catalyst - Antioch LLC
94% THC$24Visit shop : Sugar Plum Liquid Diamonds Cartridge 1G at Catalyst - Antioch LLC
13
Sugar Plum Liquid Diamonds Cartridge 1G
Jeeter · Catalyst - Antioch
94% THC$24Visit shop : Sugar Plum Liquid Diamonds Cartridge 1G at Catalyst - Antioch
14
Hawaiian Liquid Diamonds All in One 1G
Jeeter · Catalyst - Antioch
93.8% THC$21.70Visit shop : Hawaiian Liquid Diamonds All in One 1G at Catalyst - Antioch
15
Hawaiian [1000mg]
Jeeter · The Artist Tree V LLC
93.8% THC$17.40Visit shop : Hawaiian [1000mg] at The Artist Tree V LLC
16
Hawaiian Liquid Diamonds All in One 1G
Jeeter · Catalyst - Antioch LLC
93.8% THC$21.70Visit shop : Hawaiian Liquid Diamonds All in One 1G at Catalyst - Antioch LLC
17
Hawaiian [1000mg]
Jeeter · The Artist Tree
93.8% THC$17.40Visit shop : Hawaiian [1000mg] at The Artist Tree
18
ZKTLZ 1G ALL IN ONE
Papa's Herb · Ecwc Partners Inc
93.8% THC$35Visit shop : ZKTLZ 1G ALL IN ONE at Ecwc Partners Inc
19
Guava Burst Liquid Diamonds Cartridge 1G
Jeeter · Catalyst - Antioch
93.7% THC$24Visit shop : Guava Burst Liquid Diamonds Cartridge 1G at Catalyst - Antioch
20
GUAVA BURST 1G LIQUID DIAMOND CARTRIDGE
Jeeter · Ecwc Partners Inc
93.7% THC$28Visit shop : GUAVA BURST 1G LIQUID DIAMOND CARTRIDGE at Ecwc Partners Inc
21
Guava Burst Liquid Diamonds Cartridge 1G
Jeeter · Catalyst - Antioch LLC
93.7% THC$24Visit shop : Guava Burst Liquid Diamonds Cartridge 1G at Catalyst - Antioch LLC
22
Diablo OG Cartridge 1G
Heavy Hitters · Catalyst - Antioch
93.7% THC$43.40Visit shop : Diablo OG Cartridge 1G at Catalyst - Antioch
23
Diablo OG Cartridge 1G
Heavy Hitters · Catalyst - Antioch LLC
93.7% THC$43.40Visit shop : Diablo OG Cartridge 1G at Catalyst - Antioch LLC
24
Double Rainbow | 1g Liquid Diamond Cartridge
Jeeter · Otc San Pablo LLC
93.5% THC$25Visit shop : Double Rainbow | 1g Liquid Diamond Cartridge at Otc San Pablo LLC

Common questions

What is the strongest flower in Contra Costa County right now?: Karamel Runtz Infused 7g by Coastal Sun at 42.4% THC, $25.90. Rankings use lab-tested THC percentage reported on live dispensary menus.
What is the highest-THC vape cartridge in Contra Costa County?: Horchata Liquid Diamonds Cartridge 1G by Jeeter at 94.8% THC, $24.
How does Strainline rank the strongest products?: Strictly by lab-tested THC percentage from each dispensary menu, highest first. Rankings carry no paid placement; potency and price are the only inputs.