Venture capital investments have traditionally been concentrated in a handful of regions. Thus, it shouldn’t be surprising to see that companies in 10 area codes accounted for the vast majority of VC investments so far this year.

But which area code calls the largest number of recently venture-backed companies home? And which secured the largest dollar amounts?

No one with any familiarity with the venture business will be surprised to see companies in Silicon Valley and its environs capturing the lion’s share of funding. But what may be unexpected is how the dollars are distributed among sub-regions, from foggy San Francisco in the North, to sunny San Jose in the South. Another surprise? The strong performance of the Boulder and Denver metro areas, home to a larger number of deals this year, as well as a larger dollar sum, than many regions with much larger populations.

In the following slideshow, we take a look at the ten area codes that have seen the largest number of venture deals this year, based on data from Thomson Reuters.

City photos courtesy of Shutterstock. Phone image courtesy of Wikipedia.

#10: Area Code 206

#9: Area Code 858

#8: Area Code 310

#7: Area Code 781

#6: Area Code 303

#5: Area Code 408

#4: Area Code 617

#3: Area Code 212

#2: Area Code 415

#1: Area Code 650

Coverage area: Seattle metropolitan area
Companies funded, year-to-date: 80
Capital invested, year-to-date: $3.8 billion

Coverage area: Northern San Diego and environs
Companies funded, year-to-date: 100
Capital invested, year-to-date: $1.36 billion

Coverage area: Western Los Angeles
Companies funded, year-to-date: 114
Capital invested, year-to-date:  $778 million

Coverage area: Brooklyn, Bronx, Queens
Companies funded, year-to-date: 119
Capital invested, year-to-date: $1.49 billion

Coverage area: Denver and Boulder, Colo. areas
Companies funded, year-to-date: 122
Capital invested, year-to-date: $5.3 billion

Coverage area: San Jose, Calif. And environs
Companies funded, year-to-date: 180
Capital invested, year-to-date: $3.4 billion

Coverage area: Boston
Companies funded, year-to-date: 192
Capital invested, year-to-date: $1.46 billion

Coverage area: Manhattan
Companies funded, year-to-date: 300
Capital invested, year-to-date: $3.1 billion

Coverage area: San Francisco
Companies funded, year-to-date: 325
Capital invested, year-to-date: $3.3 billion

Coverage area:  Covers the heart of Silicon Valley, beginning south of San Francisco and spreading in further South to Palo Alto and Mountain View, Calif.
Companies funded, year-to-date: 400
Capital invested, year-to-date: $6.3 billiion

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