MCI Printing - Professional Commercial Printing Services

PostcardsSt. Louis, MO

Postcard mailing service in St. Louis MO — full-service printing, addressing, and USPS delivery. Targeted lists, EDDM, variable data, and bulk postage rates. Call MCI for a free quote.

Features & Benefits

  • Multiple sizes (4x6, 6x9, 6x11 jumbo)
  • 14pt–16pt card stock, UV coating included
  • Full USPS compliance & presort discount
  • Mailing list acquisition & NCOA cleanup
  • Variable data personalization
  • In-house mailing department — end to end

Service Details

Turnaround Time:

3-5 business days

Minimum Quantity:

500 units

How It Works

Postcards are the simplest and most trackable form of direct mail—no envelope to open, your message hits eyes immediately. Here's how a typical postcard mailing works at MCI: **1. Choose your size.** 4.25×6 inches qualifies for the lowest USPS automation rates—ideal for high-volume campaigns where cost per piece matters. 6×9 gives more design real estate and still qualifies for card rates. 6×11 (jumbo) commands attention in the mailbox but carries a small postage premium. We recommend sizes based on your message and budget. **2. Get your list ready.** Bring your own customer list or work with us on acquisition. We run every list through NCOA (National Change of Address) processing to remove bad addresses before you pay for postage on them. We can also suppress duplicates, filter by geography, and append demographics. **3. Design and print.** We print full-color front and back on 14pt–16pt card stock with UV coating included—postal handling is rough, and UV protects your investment. File setup is straightforward; our team checks bleeds, margins, and resolution before going to press. **4. Address and mail.** We inkjet-address directly on the card or apply labels, sort to USPS specifications for maximum automation discounts, and deliver to the post office. For large St. Louis–area campaigns, we coordinate multi-drop entry to regional facilities so your postcards hit local mailboxes faster.

Why Choose MCI

MCI has been running postcard mailing campaigns for St. Louis businesses since 1984—before most of our competitors existed. Our in-house mailing department handles everything: list processing, printing, addressing, USPS sorting, and delivery. That matters because when something goes wrong (wrong list segment, file error, USPS spec issue), we catch it ourselves instead of pointing fingers at a vendor. We know which postcard sizes qualify for automation rates, how to structure your mailing list for maximum deliverability, and when to drop mail for specific delivery windows. St. Louis restaurants, retailers, real estate agents, financial advisors, and nonprofits all use us for repeat campaigns. When response rates matter, 40+ years of experience in this city counts.

Frequently Asked Questions

What postcard sizes do you print for direct mail?
We print three standard direct mail postcard sizes: 4.25" × 6" (standard — qualifies for the cheapest USPS automation rates), 6" × 9" (large — more design space, still qualifies for card rates), and 6" × 11" (jumbo — maximum mailbox impact). Custom sizes are available but may affect postage classification.
Do you provide mailing lists for postcard campaigns?
Yes. We work with data vendors to build targeted consumer and business lists for the St. Louis metro and nationwide. Filter by ZIP code, carrier route, household income, age, business type, or purchase behavior. We also process your existing list through NCOA (National Change of Address) to remove bad addresses and reduce undeliverable waste.
How much does postcard mailing cost in St. Louis?
Total cost per piece includes printing + postage + mailing services. Printing runs roughly $0.08–$0.20 per piece depending on size, quantity, and stock. USPS Marketing Mail postage for postcards is typically $0.25–$0.40 per piece when presorted for automation discounts. First-Class postage is higher (~$0.68) but delivers faster and gets forwarded. We provide detailed per-piece quotes for your campaign before you commit.
How long does a postcard mailing take from order to delivery?
Production typically takes 3–5 business days. Once mailed, USPS Marketing Mail delivers in 3–10 business days; First-Class in 2–5 days. For local St. Louis campaigns, Marketing Mail often delivers within 3–5 days. We can coordinate your drop date so postcards arrive in mailboxes on a specific day—useful for event promotions, grand openings, or time-sensitive offers.
What is NCOA processing and do I need it?
NCOA (National Change of Address) matches your list against USPS records of people who filed a change-of-address form in the last 48 months. If you're mailing to a list that's more than 6 months old, NCOA processing is strongly recommended—it typically removes 3–8% of records that would return as undeliverable. You only pay postage on mail that reaches a valid address.
Can you personalize postcards with variable data printing?
Yes. Variable data printing lets us customize each postcard with the recipient's name, a personalized offer, or unique tracking codes. A postcard that says "Hi Jane, here's a special offer for our Chesterfield neighbors" outperforms a generic one. We handle variable data in-house from your spreadsheet or CRM export.

Related Services

Work Samples

Printed postcards in 4.25x6, 6x9, and 6x11 jumbo sizes fanned out showing UV coated glossy finish and full color marketing designs

Multiple postcard sizes with UV glossy coating

Postcard front and back showing full color marketing design on front and mailing side with address block and indicia on back, heavy cardstock edge visible

Front and back detail with heavy cardstock and UV sheen

Flat lay of direct mail postcards with personalized variable data addressing and USPS barcodes ready for postal processing

Variable data addressed postcards ready for USPS mailing

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