Zip Code 27577
Smithfield, North Carolina — Johnston County
📍 ZIP code 27577 is in Smithfield, Johnston County, North Carolina.
ZIP code 27577 is located in Smithfield, Johnston County, North Carolina. It is a zip code in the Eastern (EST/EDT) Time Zone with an estimated population of 26,946. The area code for ZIP code 27577 is 919.
Quick Answer
Zip code 27577 is in Smithfield, North Carolina (Johnston County). It has a population of 26,946, median household income of $56,237, and median home value of $230,200.
Population
26,946
Income
$56,237
Home Value
$230,200
Climate
92°F / 31°F
About Zip Code 27577
Zip code 27577 is located in Smithfield, North Carolina, within Johnston County. Home to approximately 26,946 residents, this area sits at an elevation of 144 ft and falls within the Eastern (EST/EDT) timezone. The local area code is 919.
The median household income is $56,237 per year, which is below the national median of $70,784. Homes in this zip code have a median value of $230,200, and the cost of living index is 77 (23% below the national average of 100).
Summers average a high of 92°F while winters drop to 31°F. The area receives about 49 in of rain and 1 in of snow annually. The zip code covers 104.1 square miles of land area and 0.5 square miles of water.
Key Statistics
26,946
$56,237
$230,200
Eastern (EST/EDT)
919
144 ft
104.1 sq mi
40.7
10,744
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Compare With Nearby Zip Codes
| Metric | 27577 | 27568 | 27524 | 27576 | 27555 | 27569 |
|---|---|---|---|---|---|---|
| City | Smithfield, NC | Selma, NC | Four Oaks, NC | Selma, NC | Micro, NC | Princeton, NC |
| Population | 26,946 | 1,563 | 14,420 | 20,104 | 788 | 8,396 |
| Median Income | $56,237 | $72,639 | $76,141 | $62,044 | $51,094 | $73,507 |
| Home Value | $230,200 | $233,100 | $210,900 | $178,200 | $212,500 | $194,000 |
| Cost of Living | 77 | 74 | 76 | 60 | 60 | 71 |
| Median Age | 40.7 | 39.1 | 34.4 | 36.7 | 31.5 | 36.8 |
Cost of Living
100 = National Average. Smithfield's cost of living is 23% below the national average.
vs. State Avg
Below
Affordability
Very Affordable
Income-to-Home
4.1x
Demographics
Zip code 27577 has a population of 26,946 people with a median age of 40.7. There are 10,744 housing units in this area.
Racial & Ethnic Composition
Source: U.S. Census Bureau American Community Survey estimates.
Population History
Smithfield (27577) population trend from 2010 to 2024
↑ 16.3%Source: U.S. Census Bureau estimates and American Community Survey data.
Climate & Weather
92°F
31°F
49 in
1 in
Smithfield experiences hot summers with average highs around 92°F. Winters are cool with lows averaging 31°F. The area receives about 1 in of snow per year.
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Housing & Economy
Median Home Value
$230,200
Median Household Income
$56,237
With 10,744 housing units across 104.1 square miles, 27577 has a housing density of 103 units per square mile. The home price-to-income ratio is 4.1x.
Location & Geography
Latitude
35.4898°
Longitude
-78.3328°
Land Area
104.1 sq mi
Water Area
0.5 sq mi
Nearby Zip Codes
Zip codes closest to 27577 (Smithfield, NC) with distances:
ZIP Codes with Similar Income Nationwide
The five U.S. ZIP codes whose median household income is closest to 27577's $56,237. A way to compare Smithfield to economically similar communities elsewhere in the country.
Computed from U.S. Census Bureau ACS 5-Year Estimates by the Zip Code Near Me Data Team.
ZIP Codes with Similar Demographics
The five U.S. ZIP codes whose racial and ethnic composition most closely matches 27577 (Smithfield, NC). Similarity is measured by cosine distance on the five-category ACS demographic vector.
Computed from U.S. Census Bureau ACS 5-Year Estimates by the Zip Code Near Me Data Team.
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People Also Ask
What zip code is Smithfield, North Carolina?
Smithfield, North Carolina uses zip code 27577.
What county is zip code 27577 in?
Zip code 27577 is located in Johnston County, North Carolina.
What is the population of zip code 27577?
The population of zip code 27577 is 26,946 with a median age of 40.7.
Is 27577 in Smithfield, North Carolina?
Yes, zip code 27577 is in Smithfield, Johnston County, North Carolina. The area code is 919.
Frequently Asked Questions
What city is zip code 27577 in?
Zip code 27577 is in Smithfield, North Carolina. It is part of Johnston County and uses the Eastern (EST/EDT) timezone.
What is zip code 27577?
Zip code 27577 is a U.S. postal code in Smithfield, North Carolina (Johnston County). It has a population of 26,946 and covers 104.1 square miles.
What is the population of zip code 27577?
The population of zip code 27577 (Smithfield, NC) is 26,946 with a median age of 40.7. There are approximately 10,744 housing units in this area.
What is the median income in zip code 27577?
The median household income in zip code 27577 (Smithfield, NC) is $56,237 per year. The cost of living index is 77 (100 = national average).
What is the average home price in zip code 27577?
The median home value in zip code 27577 (Smithfield, NC) is $230,200. The cost of living index is 77 compared to the national average of 100.
What county is zip code 27577 in?
Zip code 27577 is located in Johnston County, North Carolina. The primary city is Smithfield.
What is the area code for zip code 27577?
Zip code 27577 in Smithfield, NC uses area code 919. It is located in the Eastern (EST/EDT) timezone.
Is zip code 27577 a good place to live?
Zip code 27577 (Smithfield, NC) has a cost of living index of 77 (100 = national average), a median household income of $56,237, and median home values of $230,200. The median age is 40.7. Visit the full page for demographics, climate, and nearby zip code comparisons.
What is the cost of living in zip code 27577?
The cost of living index for zip code 27577 (Smithfield, NC) is 77, where 100 represents the national average. This area is below the national average. Median home value: $230,200.
What schools serve zip code 27577?
Zip code 27577 in Smithfield, North Carolina is served by the local school district of Johnston County. For specific school information, check your state's department of education or GreatSchools.org.
All demographic data on this page is sourced from the U.S. Census Bureau American Community Survey (ACS) 5-Year Estimates. ZIP code boundary and delivery data is sourced from the United States Postal Service (USPS). Data is updated periodically and may not reflect the most current figures. Census Bureau ZIP Code Tabulation Areas (ZCTAs) may differ slightly from USPS ZIP code boundaries.
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Data Sources
- Population, income, housing, age, and demographics
- U.S. Census Bureau, American Community Survey 5-Year Estimates, 2019-2023 vintage.
- ZIP to city and county mapping
- USPS and HUD-USPS ZIP-County Crosswalk.
- Time zones and area codes
- IANA tz database and NANPA.
- Elevation
- U.S. Geological Survey National Elevation Dataset (NED), via the USGS Elevation Point Query Service. Mapped to each ZCTA centroid coordinates. Last refreshed 2026-05-19.
- Last refreshed
- 2026-05-18.