The median income in the U.S. was $31,099 a year as of September. That's the highest it's been in decades, even adjusted for inflation. But it's pocket change to some Americans.

Higher incomes generally correlate to higher rent and a higher cost of living, but pay disparities, even within the same city, can be huge. For example, workers on the north side of the Central Expressway in Mountain View, California, ZIP code 94043, make $225,237.96 a year. On the other side of the road, in ZIP code 94040, the average worker makes less than half of that (guess which side of town the Googleplex is).

Which ZIP codes have the highest pay?

The Census recently released business data for every ZIP code in the country. We looked at the number of employees and payroll to find out how much workers made on average in each ZIP code to find out which areas had the highest pay in every state. Our list provides a chance to see exactly where the money is being made down to the neighborhood, and in some cases, down to the block.

Here are the highest-paying ZIP codes in each state.

Alaska: 99508

City: Anchorage Average pay: $69,303.99 What's here? BP offices

Alabama: 35233

City: Birmingham Average pay: $71,013.23 What's here? Brasfield & Gorrie headquarters

Arkansas: 72201

City: Little Rock Average pay: $65,815.53 What's here? Dillard's headquarters

Arizona: 85054

City: Phoenix Average pay: $87,233.69 What's here? Republic Services headquarters

California: 94025

City: Menlo Park Average pay: $249,236.43 What's here? Facebook headquarters

Colorado: 80202

City: Denver Average pay: $91,305.10 What's here? Chipotle headquarters

Connecticut: 06830

City: Greenwich Average pay: $137,137.54 What's here? Investment firms including Blue Harbour Group and Silver Point Capital

Delaware: 19801

City: Wilmington Average pay: $85,944.58 What's here? M&T Bank, Bank of America and other financial company offices

Florida: 33131

City: Miami Average pay: $104,244.80 What's here? Offices for international law firm Greenberg Traurig

Georgia: 30326

City: Atlanta Average pay: $98,415.88 What's here? Lenox Square and Phipps Plaza malls

Hawaii: 96813

City: Honolulu Average pay: $65,886.37 What's here? First Hawaiian Bank headquarters

Iowa: 50309

City: Des Moines Average pay: $66,402.99 What's here? Principal Financial Group headquarters

Idaho: 83714

City: Garden City Average pay: $59,320.50 What's here? Boise Bible College

Illinois: 60064

City: North Chicago Average pay: $192,296.58 What's here? Rosalind Franklin University of Medicine and Science

Indiana: 46204

City: Indianapolis Average pay: $70,965.01 What's here? Anthem headquarters

Kansas: 66211

City: Leawood Average pay: $77,546.49 What's here? AMC Theatres headquarters

Kentucky: 40202

City: Louisville Average pay: $65,512.09 What's here? Humana headquarters

Louisiana: 70121

City: New Orleans Average pay: $66,359.04 What's here? Ochsner Medical Center

Massachusetts: 02142

City: Cambridge Average pay: $163,842.12 What's here? Massachusetts Institute of Technology

Maryland: 21240

City: Baltimore Average pay: $100,927.76 What's here? Baltimore/Washington International Thurgood Marshall Airport

Maine: 04092

City: Westbrook Average pay: $59,140.76 What's here? Idexx Laboratories headquarters

Michigan: 48033

City: Southfield Average pay: $95,796.15 What's here? Lear Corporation headquarters

Minnesota: 55402

City: Minneapolis Average pay: $101,983.44 What's here? U.S. Bancorp corporate offices

Missouri: 63105

City: St. Louis Average pay: $99,323.82 What's here? Centene Corporation national headquarters

Mississippi: 39216

City: Jackson Average pay: $60,078.18 What's here? University of Mississippi School of Medicine

Montana: 59101

City: Billings Average pay: $51,414.23 What's here? Kampgrounds of America corporate office

North Carolina: 28202

City: Charlotte Average pay: $115,608.42 What's here? Bank of America Corporate Center

North Dakota: 58801

City: Williston Average pay: $65,445.81 What's here? Williston sits on top of the Bakken oil formation.

Nebraska: 68128

City: La Vista Average pay: $77,819.53 What's here? Paypal operations center

New Hampshire: 03054

City: Merrimack Average pay: $71,428.99 What's here? Brookstone headquarters

New Jersey: 07981

City: Whippany Average pay: $142,311.21 What's here? Bayer U.S. headquarters

New Mexico: 87106

City: Albuquerque Average pay: $51,518.56 What's here? University of New Mexico

Nevada: 89521

City: Reno Average pay: $56,229.20 What's here? Offices for International Game Technology

New York: 10281

City: New York Average pay: $213,622.81 What's here? This ZIP code serves Brookfield Place, also known as the World Financial Center, a shopping center and office complex with tenants including Time, Inc.

Ohio: 45202

City: Cincinnati Average pay: $90,913.49 What's here? Procter & Gamble headquarters

Oklahoma: 73102

City: Oklahoma City Average pay: $89,497.67 What's here? Devon Energy corporate headquarters

Oregon: 97124

City: Hillsboro Average pay: $94,311.94 What's here? Four Intel campuses

Pennsylvania: 19312

City: Berwyn Average pay: $104,593.20 What's here? TE Connectivity regional headquarters

Rhode Island: 02903

City: Providence Average pay: $58,066.96 What's here? Textron world headquarters

South Carolina: 29601

City: Greenville Average pay: $65,986.60 What's here? St. Francis Health System

South Dakota: 57108

City: Sioux Falls Average pay: $47,504.02 What's here? MetaBank main office

Tennessee: 38120

City: Memphis Average pay: $81,813.85 What's here? FedEx headquarters

Texas: 77010

City: Houston Average pay: $168,316.94 What's here? Ernst & Young offices

Utah: 84111

City: Salt Lake City Average pay: $72,079.47 What's here? Grand America Hotel

Virginia: 20190

City: Reston Average pay: $109,069.55 What's here? Carahsoft Technology Corporation

Vermont: 05495

City: Williston Average pay: $49,438.24 What's here? Vermont Department of Corrections

Washington: 98052

City: Redmond Average pay: $151,357.05 What's here? Microsoft headquarters

Wisconsin: 53202

City: Milwaukee Average pay: $83,516.69 What's here? Northwestern Mutual corporate headquarters

West Virginia: 25301

City: Charleston Average pay: $48,953.43 What's here? Charleston Area Medical Center

Wyoming: 83001

City: Jackson Average pay: $45,309.53 What's here? Snow King Resort

Methodology

The source for the data is the Census County Business Patterns data series. To get average pay, we divided annual payroll by the number of employees in each zip code with at least 10,000 employees.

Wondering how pay has changed since the Great Recession? Here's where income has gone up the most since 2008.

Image: ansonmiao

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