ZIP code
27577
Smithfield, NC
27577 covers Smithfield in Johnston County, with 26,946 people in the ACS 2023 estimate.
Figures are for the Census ZIP Code Tabulation Area (ZCTA), which is not the same as a USPS ZIP code. A PO Box or unique ZIP may have no ZCTA and no demographics. Methodology
U.S. Census Bureau, ACS 2019–2023 5-year (vintage 2023). Geography: ZCTA 27577. Methodology
ZIP code map of 27577

About ZIP code 27577
More enterprise fields
Commercial ZIP directory · not ACS
Commercial ZIP directory population_count for ZCTA 27577. Not ACS. Methodology
People in 27577
Race
- White14,341
- Black or African American5,038
- American Indian or Alaska Native235
- Asian178
- Native Hawaiian and Pacific Islander13
- Other race3,017
- Two or more races2,150
Hispanic or Latino (any race): 5,352
Age
- Under 103,115
- 10 to 193,386
- 20 to 292,887
- 30 to 393,260
- 40 to 493,257
- 50 to 593,258
- 60 to 692,822
- 70 to 791,968
- 80 and older1,019
Income and housing in 27577
Education
- High school graduate81.6%
- Bachelor's degree21.5%
- Graduate degree6.4%
Places covering 27577
Cities and places — Population overlap
Share of this ZIP/ZCTA’s population located within each place, based on ZIP Code Database place-overlap data. This is a population measure, not land-area overlap or the Census-place population.
- Smithfield45.2%
- Wilson's Mills4.7%
- Pine Level0.0%
- Selma0.0%
ZIP Code Database place-overlap table, field percent_of_zip_population_in_place, keyed by place_geoid. Not ACS 2019–2023. Overlap vintage is the shipped overlap table and is separate from ACS. Methodology
Counties — Population overlap
Share of this ZIP/ZCTA’s population located within each county, based on ZIP Code Database county-overlap data. This is a population measure, not land-area overlap or the Census county population.
- Johnston County100.0%
ZIP Code Database county-overlap table, field percent_of_zip_population_in_county, keyed by county_geoid. Not ACS 2019–2023. Overlap vintage is the shipped overlap table and is separate from ACS. Methodology
50.1% of this ZIP is outside city limits (a real overlap row, not missing data).
Population history for 27577
Hover the chart or read the table below (Year | ACS | IRS).
| Year | ACS population | IRS population |
|---|---|---|
| 2005 | 18,359 | |
| 2006 | 18,784 | |
| 2007 | 21,176 | |
| 2008 | 19,840 | |
| 2009 | 20,055 | |
| 2010 | 20,623 | |
| 2011 | 23,081 | 20,574 |
| 2012 | 24,664 | 20,390 |
| 2013 | 25,260 | 20,310 |
| 2014 | 24,453 | 20,060 |
| 2015 | 24,671 | 20,130 |
| 2016 | 24,621 | 20,510 |
| 2017 | 24,351 | 20,250 |
| 2018 | 25,330 | 20,440 |
| 2019 | 26,875 | 20,520 |
| 2020 | 26,352 | 21,250 |
| 2021 | 25,950 | 20,910 |
| 2022 | 26,778 | 21,780 |
| 2023 | 26,946 |
ACS: U.S. Census Bureau American Community Survey 5-year estimates. IRS: Statistics of Income ZIP Code data.
ZIP codes near 27577
12 nearest ZIP centroids (any distance)
- 27568Pine Level5.9 miPop 1,563 · Income $72,639
- 27593Wilsons Mills6.6 miPop 0 · Income —
- 27524Four Oaks7.2 miPop 14,420 · Income $76,141
- 27576Selma7.5 miPop 20,104 · Income $62,044
- 27555Micro9.3 miPop 788 · Income $51,094
- 27569Princeton10.6 miPop 8,396 · Income $73,507
- 27520Clayton11.1 miPop 48,662 · Income $84,545
- 27527Clayton11.4 miPop 35,968 · Income $111,011
- 27504Benson11.6 miPop 15,999 · Income $68,376
- 27528Clayton12.4 miPop 1,100 · Income —
- 27542Kenly14.6 miPop 9,441 · Income $56,157
- 27529Garner17.0 miPop 55,201 · Income $86,426
ZIP centroids within 2 miles
No other ZIP codes within 2 miles of 27577, measured by Census internal-point centroids. Try a wider radius.
ZIPs within 2 miles of this place
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ZIP code 27577 FAQ
- What city is ZIP code 27577 in?
- 27577 is in Smithfield, NC.
- What county is 27577 in?
- 27577 is in Johnston County.
- What is the median household income in 27577?
- The median household income in 27577 is $56,237.
- Which ZIP codes are near 27577?
- Use the radius tool on this page to list ZIP codes within a chosen distance of 27577.