Dacula GA ZIP Codes: Find Your Location

Nick Leason

-Oct 2, 2025

Dacula, Georgia, is a charming city located in Gwinnett County, offering a blend of suburban tranquility and convenient access to the Atlanta metropolitan area. Understanding the specific ZIP codes within Dacula is essential for residents, businesses, and anyone sending mail or packages to the area. This guide provides a comprehensive overview of Dacula's ZIP codes, helping you navigate and identify the correct postal areas.

Key Takeaways

Dacula, GA is primarily served by the 30019 ZIP code, but also includes portions of 30078.
ZIP codes are crucial for mail delivery, emergency services, and understanding local demographics.
Understanding your specific ZIP code helps in locating addresses accurately and efficiently.
This guide covers the main ZIP codes, their geographic coverage within Dacula, and why they matter.

Introduction

What are the ZIP codes for Dacula, Georgia? The primary United States Postal Service (USPS) ZIP code for Dacula is 30019. However, parts of the Dacula area also fall under the 30078 ZIP code. These codes are fundamental to the efficient sorting and delivery of mail and packages, ensuring that correspondence reaches its intended destination within the Dacula community. Knowing the correct ZIP code is vital for everything from receiving bills to directing emergency services and understanding the geographical boundaries of local services.

What & Why: Understanding Dacula's ZIP Codes

What are ZIP codes?

ZIP (Zone Improvement Plan) codes are a system of postal codes used by the United States Postal Service (USPS) since 1963. They are a series of five digits that identify a geographic area, making mail sorting and delivery more efficient. For example, the 30019 ZIP code identifies a specific region within and around Dacula, Georgia.

Why are Dacula's ZIP Codes Important?

Mail and Package Delivery: The most obvious reason is ensuring that mail, packages, and deliveries reach their correct destinations promptly. Using the wrong ZIP code can lead to delays or misdelivered items.
Emergency Services: Police, fire departments, and ambulance services often use ZIP codes as a preliminary way to narrow down locations during emergencies, especially when precise street addresses might be ambiguous or difficult to pinpoint.
Demographics and Statistics: Government agencies, researchers, and businesses use ZIP code data to analyze population demographics, economic trends, and market research. This helps in understanding the characteristics of specific neighborhoods within Dacula.
Business Operations: Businesses rely on ZIP codes for shipping logistics, targeted marketing campaigns, and determining service areas. For a business located in or serving Dacula, knowing the relevant ZIP codes is crucial for operational efficiency.
Identifying Location: For residents, knowing their ZIP code helps define their locality, which can be important for school district assignments, voting precincts, and local service providers.

The Primary ZIP Code: 30019

The 30019 ZIP code is the most commonly associated with Dacula. It covers a significant portion of the city and its surrounding areas in Gwinnett County. This code encompasses a mix of residential neighborhoods, commercial centers, and undeveloped land, reflecting the diverse landscape of Dacula.

The Secondary ZIP Code: 30078

While 30019 is the main code, some areas on the western edges of Dacula, or areas that are commonly considered part of Dacula, might fall under the 30078 ZIP code. This code is primarily associated with the city of Suwanee but extends into neighboring areas, including parts of Dacula. This overlap can sometimes cause confusion, highlighting the importance of verifying the exact ZIP code for a specific address.

Risks of Incorrect ZIP Codes

Using an incorrect ZIP code can lead to several problems:

Delivery Delays: Mail and packages may be rerouted, significantly delaying their arrival.
Lost Mail: In some cases, incorrectly addressed mail might become lost, especially if the ZIP code points to a completely different region.
Inaccurate Service Provision: Businesses or services that rely on ZIP code data might incorrectly determine if a location is within their service area.
Emergency Response Issues: While not the sole identifier, an incorrect ZIP code could theoretically slow down initial emergency dispatch.

How to Find the Correct Dacula, GA ZIP Code

Navigating ZIP codes can sometimes be tricky, especially in areas where boundaries are not perfectly defined or when a city spans multiple codes. Here’s how to ensure you have the correct one for Dacula:

1. Use the USPS ZIP Code Lookup Tool:

The most reliable method is to use the official USPS website. They provide a free tool where you can enter a street address, city, and state to find the exact ZIP code. This is the definitive source for postal information.

How to Use: Go to the USPS website (usps.com) and look for the 'Find ZIP Codes' option. Enter the full street address in Dacula, GA, and it will return the correct ZIP code.

2. Consult Online Mapping Services:

Services like Google Maps, Apple Maps, or Bing Maps can often display the ZIP code when you search for a specific address or landmark within Dacula. While generally accurate, always cross-reference with the USPS tool for critical mailings.

3. Check Official Dacula City Resources:

Sometimes, the official website for the City of Dacula or Gwinnett County may offer information on ZIP code boundaries or maps, particularly concerning local services and planning.

4. Ask the Recipient or Sender:

If you are sending mail or a package, the simplest way is often to ask the person or business you are corresponding with for their exact address, including the correct ZIP code. — Is EA Stock A Good Investment? Analysis & Outlook

5. Verify Business Addresses:

If you are a business operating in or targeting Dacula, ensure your internal systems use the correct ZIP codes for all your customers and service areas. Regularly update your address databases.

Dacula, GA ZIP Codes: A Closer Look

30019:

Primary Use: This ZIP code is the core identifier for Dacula. It covers the majority of the city's residential areas, downtown Dacula, and many local businesses. It extends into surrounding unincorporated areas of Gwinnett County that are closely associated with Dacula.
Geographic Characteristics: The 30019 area features a mix of suburban neighborhoods, newer developments, older established communities, parks, schools, and commercial strips along major roads like Hamilton Mill Road and Dacula Road.
Associated Areas: While centered on Dacula, this ZIP code can also include parts of nearby communities or unincorporated Gwinnett County that fall under the Dacula mailing address.

30078:

Primary Use: This ZIP code is mainly associated with the city of Suwanee, Georgia. However, its boundaries extend westward and southwestward, encompassing certain sections that residents might consider part of Dacula or that share proximity and services with Dacula.
Geographic Characteristics: The 30078 area is also a suburban region within Gwinnett County, known for its residential areas, parks, and commercial developments. When it overlaps with Dacula, it typically affects the westernmost parts of the city or areas that border Suwanee.
Importance of Verification: If an address falls within this overlapping region, it's crucial to confirm whether the mailing address should officially be Dacula or Suwanee, as this can sometimes depend on USPS designations and local perception.

ZIP Codes vs. Geographic Boundaries

It's important to understand that ZIP code boundaries don't always align perfectly with official city limits or county lines. The USPS creates ZIP codes based on delivery efficiency, not necessarily political or administrative boundaries. — Lake Wales, FL Zip Code: Find It Here!

City of Dacula: The official city limits of Dacula are a specific geographic area within Gwinnett County. Some addresses within these limits will use 30019, while others, particularly on the periphery, might use 30078 if that serves as the designated postal address.
Gwinnett County: Both ZIP codes operate within Gwinnett County, a large and populous county in the northeastern part of the Atlanta metropolitan area.
Delivery Route Optimization: The USPS might assign a portion of a city to a nearby town's ZIP code if it makes the delivery routes more efficient. This is why you might find addresses that are geographically in Dacula but have a Suwanee (30078) ZIP code, or vice versa.

Dacula, GA ZIP Codes in Practice: Use Cases

1. Moving to Dacula:

When you move to Dacula, you'll need to update your address with various entities. Knowing your correct ZIP code (30019 or potentially 30078) ensures that your change of address forms are processed correctly, and you start receiving mail at your new home without issues.

2. Registering for Local Services:

Utilities, local government services, and even setting up new accounts often require your ZIP code. This helps them verify your location within their service area and assign you to the correct local offices or providers.

3. Online Shopping:

Online retailers use your ZIP code for calculating shipping costs, estimated delivery times, and sometimes for tax purposes. Ensuring accuracy helps avoid shipping errors or unexpected charges.

4. Business Location and Expansion:

For businesses considering opening in Dacula, understanding the ZIP code demographics can inform decisions about market reach, customer base potential, and competition.

5. Emergency Preparedness:

While 911 addresses are primary for emergency services, having the correct ZIP code can be a helpful secondary piece of information for dispatchers, especially in large or complex areas.

Best Practices & Common Mistakes

Best Practices:

Always Verify: Use the USPS ZIP code lookup tool for any important mailing or when in doubt.
Use Full Address: Always include the full street address, city, state, and ZIP code for maximum accuracy.
Educate Your Staff: If you run a business, ensure everyone handling addresses knows the importance of ZIP codes and how to verify them.
Update Databases: Regularly update customer and vendor databases with correct ZIP code information.

Common Mistakes:

Assuming the ZIP Code: Assuming that just because an address is in Dacula, it must be 30019. Remember the 30078 overlap.
Using City vs. Post Office Name: Sometimes, a post office name might differ from the official city name. Always use the city name designated by the USPS for the specific ZIP code.
Typos: Simple typographical errors in the ZIP code digits are a common cause of delivery issues.
Outdated Information: Using old ZIP code information from outdated directories or records.

Frequently Asked Questions (FAQs)

Q1: What is the main ZIP code for Dacula, GA?

A1: The primary and most common ZIP code for Dacula, GA is 30019. It covers the majority of the city.

Q2: Are there other ZIP codes that serve parts of Dacula, GA? — Can Deaf People Drive? Legal Rights & Safety

A2: Yes, some western areas of Dacula may fall under the 30078 ZIP code, which is primarily associated with Suwanee.

Q3: How can I be sure I have the correct ZIP code for an address in Dacula?

A3: The most reliable method is to use the USPS ZIP Code Lookup tool on the official USPS website (usps.com) by entering the full street address.

Q4: Do ZIP code boundaries match the city limits of Dacula?

A4: Not always. ZIP code boundaries are determined by USPS for delivery efficiency and may not perfectly align with official city limits or county lines. Some addresses within Dacula's city limits might use a different ZIP code for postal purposes.

Q5: Why is it important to use the correct ZIP code?

A5: Using the correct ZIP code is essential for accurate and timely mail and package delivery, efficient routing of emergency services, demographic analysis, and proper business operations.

Conclusion with CTA

Navigating the postal system for Dacula, Georgia, primarily involves understanding the 30019 ZIP code, while remaining aware of the 30078 code's potential overlap. Accurate ZIP code identification is fundamental for seamless communication, efficient service delivery, and community organization within Dacula and its surrounding Gwinnett County areas. Always verify your address using official USPS resources to ensure accuracy.

Ready to explore Dacula or need to send something to the area? Ensure you have the correct ZIP code handy for all your mailing needs!

Last updated: October 26, 2023, 10:30 UTC