# Proxies for local price checks by US city and ZIP > Record the public prices and stock shoppers see in one US city or ZIP code: city and ZIP proxies, store pickers, tax and a polite request rate. No KYC. - URL: https://metroproxies.com/guides/local-price-checks/ - Last updated: 2026-10-18 - Publisher: MetroProxies (https://metroproxies.com) Retail, grocery and delivery sites price by store and ZIP code. A city or ZIP IP lets you record the public price a local shopper sees. **Quick answer — How do I see the price shoppers get in another US city?** Load the public product page through a residential IP in that city, with the store or ZIP the site picks for local shoppers. With **MetroProxies** (from $0.50/GB, October 2026), use `-city-` and `-zip-` segments, keep one sticky session per city, and record the store and ZIP the page shows with each price. No KYC; crypto. ## Why do prices differ between US cities? Several layers stack up: - **Store-level pricing:** grocery and big-box chains price by store; the site chooses a store from your ZIP or IP. - **Delivery and fees:** delivery windows, minimums and fees follow distance from a warehouse. - **Sales tax:** most US sites show prices before tax; the rate at checkout changes by state and city. Our city pages give the state rate and the average combined rate (Tax Foundation, July 2026), from 0% in Oregon to 10.13% on average in Louisiana. - **Regional promotions:** campaigns bought by metro area. Record which layer you measure. A shelf price comparison should hold the store constant; a delivered-cost comparison should include fees and tax. ## How do I set up a price check run? 1. **List the places:** one ZIP code per city, well inside city limits. Each [city page](https://metroproxies.com/cities/) lists ZIP areas that lie mostly inside the city. 2. **One sticky session per place:** `USERNAME-country-us-state-ga-city-atlanta-zip-30309-session-atl1-ttl-15`, so the site keeps the same store for the whole visit. 3. **Read the store the page chose** and save it with the price; if it is not the store you expected, set it explicitly on the page if the site offers that. 4. **Keep it light:** public pages only, no login, a few requests per minute per site, and follow robots.txt and the site's terms. Many retailers also offer official product feeds or affiliate APIs; prefer them when they exist. 5. **Verify the exit** in a lookup service at the start of each session. ## How much traffic will it use? Product pages are heavy when fully loaded (often 3 to 8 MB with images and scripts) and light as HTML only (0.2 to 1 MB). For 200 products in 15 cities checked weekly: - HTML only, 0.5 MB each: 200 × 15 × 0.5 MB = 1.5 GB a week, about 6 GB a month: the 10 GB plan ($5.94) lasts more than a month. - Full browser loads, 4 MB each: 12 GB a week, about 48 GB a month: the 50 GB plan ($25.98). Blocking images and fonts in a headless browser often cuts usage by half. Prepaid residential and rotating-mobile traffic never expires: unused GB stay on your account until you use them. ## Where should I go next? Hold one store per visit with [sticky sessions by city](https://metroproxies.com/guides/sticky-sessions-by-city/), pick ZIP codes on [proxy by ZIP code](https://metroproxies.com/targeting/zip-code/), check exits with the [proxy location checker](https://metroproxies.com/guides/verify-proxy-city/), and size your plan on the [pricing page](https://metroproxies.com/pricing/). More on the [guides page](https://metroproxies.com/guides/). ## What else do people ask about price checks? ### Can I check prices behind a login? Check public pages only. Logged-in areas are covered by account terms, and some sites forbid automated access to them. If you need data from your own seller or partner account, use the platform's official API. ### Do I need a ZIP or is the city enough? For grocery and delivery prices, use a ZIP: the store is chosen from it. For national retailers with one online price, the city or even the state is enough. ZIP-level geolocation is approximate, so read the store the page shows. ### What if a site blocks my requests? Slow down and stop: a site that refuses automated requests is telling you its rules. Use its official API or feed, or ask for permission. A different IP does not make blocked access permitted. ## Sources 1. [State and local sales tax rates, midyear 2026](https://taxfoundation.org/data/all/state/2026-sales-tax-rates-midyear/) — Tax Foundation (2026-10-18) --- MetroProxies: MetroProxies is a US residential proxy provider with city-level targeting, paid in crypto with no ID upload. Home IPs are requested by city, state, ZIP code or ISP network, with a page of local data for each of 181 US cities.