Trends · data through July 2026

Pharmacies in St. Louis, MO-IL

Iceflower tracks 210 stores from 16 pharmacies chains in St. Louis, MO-IL. Mercy Pharmacy grew fastest over the last year, ahead of CVS Pharmacy and Walgreens.

Rankings come from real card and bank transactions across a panel of 130M+ US and EU consumers. We publish relative growth and rankings, never revenue figures. About the data

Tracked chains
16
Tracked stores
210
Consumer panel
130M+

Growth ranking

Fastest-growing tracked pharmacies chains

Ranked by year-over-year growth of share of tracked local spend. Arrows show movement in the rankings since last year. Each dot in the chart is one tracked chain: bigger market position to the right, faster growth higher up, more tracked stores in a bigger dot. Colors match the store map below. Mercy Pharmacy and CVS Pharmacy sit in the high-growth half.

# Chain YoY growth
RankChainRank movementYoY growth
1 M Mercy Pharmacy - +11.6%
2 C CVS Pharmacy logo CVS Pharmacy - +5.2%
3 W Walgreens logo Walgreens - -1.7%
  • Walgreens
  • CVS Pharmacy
  • Mercy Pharmacy
  • Ladue Pharmacy
  • Genesis Pharmacy Services
  • Heartland Discount Pharmacy
  • Lindenwood Drug
  • Other tracked chains

Store footprint

Store map

210 tracked store locations in St. Louis, MO-IL. The 7 largest tracked chains are highlighted.

  • Walgreens (122)
  • CVS Pharmacy (71)
  • Mercy Pharmacy (4)
  • Ladue Pharmacy (1)
  • Genesis Pharmacy Services (1)
  • Heartland Discount Pharmacy (1)
  • Lindenwood Drug (1)
  • Other tracked chains

Top tracked chains by store count

  • 1 W Walgreens logo Walgreens 122
  • 2 C CVS Pharmacy logo CVS Pharmacy 71
  • 3 M Mercy Pharmacy 4
  • 4 L Ladue Pharmacy 1
  • 5 G Genesis Pharmacy Services 1
  • 6 H Heartland Discount Pharmacy 1
  • 7 L Lindenwood Drug 1
  • 8 G Globe Drug 1
  • 9 E Excel Pharmacy 1
  • 10 M Medicine Shoppe logo Medicine Shoppe 1
  • 11 J Juniper Pharmacy 1
  • 12 W Westland Health Mart Pharmacy 1
  • 13 M Millbrook Pharmacy 1
  • 14 C CenKare Pharmacy 1
  • 15 D Dauber Pharmacy 1
  • 16 F Freeburg Pharmacy 1

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