Datasheer, L.L.C. · trading as ZIP-Codes.com
About Us
A data company in Hopewell Junction, New York. We have published postal data under license since 2003 — and we still answer our own phone.
A data company in Hopewell Junction, New York. We have published postal data under license since 2003 — and we still answer our own phone.
Who we are, in the words we would use on the phone.
Datasheer, L.L.C., operating under the domain zip-codes.com, is a data company with a specialized focus on postal system information and services. Founded in 2003, we help organizations use ZIP Code data for automation, marketing and verification.
We put an unusual amount of weight on support, because it is the part of this business that is easiest to get wrong and hardest to fake. Email is answered within 30 minutes during business hours, and the phone is answered by someone who works on the data rather than by a queue.
Our team brings a long run of experience in data management and programming. That combination — the postal domain knowledge and the engineering to keep it current every month — is what a customer is really buying, and it is why the same people who build the files are the ones who pick up when you call about them.
Eight of them, and they have been the same eight for a long time.
We also give away a good deal of what we know. The free ZIP Code database and the reference pages across this site are a genuine service in their own right — and the most honest sample of our work we can offer. If you have a suggestion for the site, send it to info@zip-codes.com.
A small team. When you call, it is one of these people.
Jim Lewis
Owner
Jim Lewis, the visionary founder and owner of zip-codes.com, comes with a solid background in finance, bolstered by an accounting degree and a professional certification as a Certified Public Accountant (CPA). His extensive career spans 20 years in the accounting sector, where he honed his skills and expertise working for a pension company and a family wealth office, providing him with a deep understanding of financial strategies and operational efficiencies. In 2003, leveraging his vast experience and entrepreneurial spirit, Jim launched zip-codes.com, a company that would soon become a leading provider of postal system information and services. Under his leadership, zip-codes.com has flourished, combining Jim's passion for data accuracy with his commitment to delivering exceptional value and service to customers worldwide. Jim's journey from a seasoned accountant to a successful entrepreneur exemplifies his dedication, foresight, and ability to innovate in the dynamic digital landscape.
J. Eddie Harris
Lead Data Architect
Eddie Harris is a seasoned lead developer with a rich educational background, holding a dual bachelor's degree in Business and Computer Science. Throughout his career, he has showcased his exceptional technical prowess and leadership skills by spearheading key projects for large corporations such as HP, Palm, and PriceWaterhouseCooper (PwC). His innovative solutions and strategic approach have significantly contributed to the digital transformation initiatives at WhitePages and the United States Postal Service (USPS). Eddie's expertise in software development, coupled with his business acumen, allows him to seamlessly bridge the gap between technical and business objectives, driving sustainable growth.
Jennifer Newsam
Lead Support
Jennifer Newsam is a highly skilled lead support professional with a degree in Business and over two decades of experience in customer service and data management. Starting her career as a customer support manager, Jennifer honed her skills in addressing customer needs and improving service delivery, a role she excelled in for 10 years. Transitioning to work with USPS data, she has spent 14 years mastering the complexities of postal data and leveraging this knowledge to enhance operational efficiencies and customer satisfaction. Her tenure is marked by a deep understanding of the intricacies of data management within the context of a large, service-focused organization. Her commitment to excellence, coupled with her extensive experience, makes Jennifer Newsam a standout leader in support and data management.
Vincent Cina
Technology Consultant
Vincent Cina is a seasoned professional with a multifaceted career spanning over 40 years in the realm of computer science. With 15 years of experience, starting as a computer operator and advancing to senior system programmer for a prominent New York Utility where he honed his technical prowess and problem-solving skills. Transitioning into Computer Science Research at IBM, Vincent spent 15 years as a senior computer science research manager, then 12 years as senior IT manager for IBM's world wide Research division. Vincent contributed significantly to cutting-edge advancements in the field. Notably, Vincent holds four U.S. Patents in the computer science domain, a testament to his innovative thinking and contributions to the industry.
Rick Wagner
Advertising Consultant
Rick Wagner is a seasoned Advertising Consultant with an extensive background in operational efficiency and management, boasting over two decades of experience in the restaurant industry. Throughout his career, Rick has demonstrated a keen ability to enhance operational workflows and customer service, leading to significant improvements in business performance. Joining our team 10 years ago, he has been instrumental in refining our advertising strategies, directly contributing to increased visibility and customer engagement. His innovative approach to marketing and deep understanding of customer dynamics have enabled him to maximize customer experiences, setting new standards in advertising excellence. Rick's blend of industry expertise and marketing acumen makes him a pivotal asset to our team, driving forward our mission to deliver outstanding results.
Most sites hand you the Census figure and stop there. The number on its own does not tell you whether it is unusual.
So every figure we publish for a ZIP Code is also placed against its state and national counterparts, and the result of that comparison is stated in words rather than left for you to work out. That is what lets a page say a place is a female-majority area instead of printing two percentages and hoping you notice.
A comparison lands in one of seven bands, measured as the distance in percentage points between this ZIP Code and the figure it is being compared to. “About the Same” is therefore a stated tolerance, not a judgment call.
The Census publishes a margin of error beside every American Community Survey estimate. When that margin is more than half the estimate itself, we draw no comparison at all and mark the figure unreliable instead. It is the one class whose job is to tell you not to use the number — which is why it does not sit on a scale of “how different”.
Band widths are set per metric rather than once for everything: income and employment use 1, 3 and 7 percentage points, while population shares use 2, 5 and 10. A one-point move is worth more in a labor force participation rate than it is in an age bracket, and the bands say so.
Every figure is attributed — the 2020 Census DHC and the ongoing ACS are different things with different reliability, and the page says which one it is using.
Charts are drawn as SVG and tables are color-coded with tooltips, so the shape of the data arrives before the reading does.
Postal data is rebuilt monthly and Census figures are refreshed as each release lands. A stale number is a wrong number.
Thirty days. Unconditional. No questions.
Plenty of companies claim to be the best; fewer will put a refund behind it. Since 2003 we have built a customer list running from Fortune 500 companies to individuals and small businesses. Where competitors offer email alone, we publish a phone number — 1-800-425-1169 — and answer it. We are not only a USPS licensee but a direct collaborator, and we license data back to the USPS. Quality and service come first here, and the guarantee is how we are willing to be held to that.
If the data turns out to be wrong for what you are building, tell us inside thirty days and we refund you in full. We would rather do that than have you stuck with a file that does not fit.
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