How Many Road Signs Are In The US?
Bill Tran
There is no national count of road signs in the United States. What exists is better than a guess: the Federal Highway Administration (FHWA) built a sign-by-sign cost model in 2007, several state and city agencies publish their own inventories, and FHWA maintains a list of every standard sign design. RoadSigns.com pulled those government sources together on September 20, 2026. Read together, they put the installed total at roughly 50 million to 160 million signs, and the number of standard sign designs at 1,059.
Quick answer: The United States has somewhere between about 50 million and 160 million road signs. FHWA's 2007 sign model implies about 53 million. Scaling the sign densities that state and city agencies actually report gives 100 million or more. The often repeated figure of "about 40 million" comes from multiplying road miles by an assumed 10 signs per mile, and every official inventory we found runs at least twice that dense. Separately, the current Manual on Uniform Traffic Control Devices (MUTCD) has 1,059 standard designations, of which 838 are signs, 208 are plaques, and 13 are object markers.
Source note: every figure on this page comes from FHWA, a state or city transportation agency, or RoadSigns.com's own count of FHWA's published sign list. Where we did the arithmetic ourselves, we say so and show the math in the methodology section.
How Many Road Signs Are There in the U.S.?
Two different questions hide inside this one. "How many signs are installed?" is a question about aluminum on posts. "How many kinds of sign are there?" is a question about the rulebook. The answers are millions apart, so the table keeps them separate.
| Question | Answer | Where it comes from |
|---|---|---|
| Signs installed on U.S. public roads | About 50 million to 160 million | Low end: FHWA's 2007 sign model. High end: state and city inventories scaled to 4.2 million road miles. Our calculation, shown below. |
| The figure most websites repeat | About 40 million | 4.1 million road miles multiplied by an assumed 10 signs per mile. The 10-per-mile assumption has no inventory behind it. |
| Street name signs only | 18.6 million | FHWA: 3 million intersections, 8 signs at each signalized one and 6 at each unsignalized one. |
| Standard sign designs in the MUTCD | 1,059 designations | RoadSigns.com count of FHWA's published 11th Edition sign list, September 20, 2026. |
| Functional classes of signs | 3 | Regulatory, warning, and guide, defined in MUTCD Section 2A.03. |
Swipe sideways on a phone to see the full table.
What Official Sign Inventories Actually Show
The "40 million" figure rests on one number: 10 signs per mile. Agencies that have counted their own signs report far more than that. New York City's transportation department says it maintains over one million street signs on 6,300 miles of streets and highways, which is about 159 signs per mile. Missouri's department of transportation maintains almost 700,000 signs on the 30,653 miles of highway the state owns, about 23 per mile. A North Carolina study cited by FHWA counted over three million signs on the state's 78,000-plus miles of roads under every jurisdiction, about 38 per mile.
Signs per mile of road, as reported by government agencies, compared with the 10-per-mile assumption behind the common national estimate.
Densities are RoadSigns.com calculations from each agency's published sign count and road mileage. The three inventories count different things: New York City includes parking and street name signs on dense urban streets, Missouri covers state highways only, and the North Carolina figure is a year-2000 estimate covering state, county, and local roads.
Applied to the 4,208,454 miles of public road that FHWA reports for 2024, even the lowest official density gives a much bigger number than 40 million. Missouri's 23 per mile works out to about 97 million signs. North Carolina's 38 per mile works out to about 160 million. Neither density is a perfect stand-in for the whole country, because rural local roads carry fewer signs than state highways and city streets carry far more. But there is no official inventory anywhere near 10 per mile, which is why we treat 40 million as a floor rather than an estimate.
What FHWA's Own Sign Model Implies
FHWA has never published a headline total, but in 2007 it published something close. To estimate the cost of its new sign reflectivity rule, the agency modeled how many regulatory, warning, and guide signs would need replacing, then added separate estimates for street name signs and overhead guide signs. The report gives the number of signs needing upgrade and the share of signs that fail the standard. Dividing one by the other gives the size of the sign population the model assumed.
| Sign population in FHWA's 2007 model | Signs | How the number is reached |
|---|---|---|
| Regulatory, warning, and guide signs, state highways | 9,200,000 | 460,000 signs needing upgrade, at the report's 5% failure rate |
| Regulatory, warning, and guide signs, local roads | 25,375,000 | 2,030,000 signs needing upgrade, at the report's 8% failure rate |
| Street name signs, signalized intersections | 2,400,000 | 300,000 intersections, 8 sign panels each |
| Street name signs, unsignalized intersections | 16,200,000 | 2,700,000 intersections, 6 signs each |
| Overhead guide signs | 280,000 | Stated in the report |
| Implied national total | 53,455,000 | Sum of the rows above (RoadSigns.com calculation) |
Swipe sideways on a phone to see the full table.
Two cautions. The model's sign densities came from a small sample of agencies surveyed in the 1990s, and the report says so. And the 5% and 8% failure rates are rounded, so the implied total is approximate. Even so, this is the closest thing to a federal count that exists, and it lands above 50 million before counting a single parking sign. Source: FHWA-HRT-07-042, Maintaining Traffic Sign Retroreflectivity: Impacts on State and Local Agencies, April 2007, Tables 7 through 10.
How Many Signs Are in the MUTCD?
The MUTCD is the federal rulebook for every sign on a public road, and FHWA publishes a companion list of every standard sign design with its designation code, such as R1-1 for the Stop sign. RoadSigns.com counted that list on September 20, 2026. It contains 1,059 unique designations: 838 signs, 208 plaques (the small supplemental panels mounted under a sign), and 13 object markers.
| Sign category | Total designations |
New in the 11th Edition |
Of which plaques |
|---|---|---|---|
| Regulatory signs | 411 | 120 | 59 |
| Guide signs | 317 | 99 | 73 |
| Warning signs and object markers | 246 | 41 | 65 |
| Temporary traffic control signs | 65 | 8 | 5 |
| School signs | 20 | 4 | 6 |
| Total | 1,059 | 272 | 208 |
Swipe sideways on a phone to see the full table.
Unique sign, plaque, and object marker designations in FHWA's published 11th Edition sign list, by section, September 2026.
Counts are unique designation labels in the five sign tables on FHWA's Standard Highway Signs release-status page. Headings, arrow details, and the discontinued list are excluded. Sizes, speed values, street names, and left and right versions are not counted separately.
The 11th Edition, the first new edition of the MUTCD since 2009, reshaped the list. FHWA marks 272 of the 1,059 designations as new signs, about one in four, and its separate discontinued list retires 28 older designs. The growth is concentrated in a few areas: 21 new signs in the R9 series for bicycles and other non-motorized users, 22 new freeway guide signs in the E series, 11 new electric vehicle parking and charging signs in the R7 series, and 11 new part-time shoulder travel signs in the R3 series. The largest single series in the whole manual is R3, lane control and turn restrictions, with 127 designations. FHWA released the list in six batches between June 7, 2024 and February 10, 2026, and the current manual is the 11th Edition with Revision 1, dated December 2025.
One Design, Millions of Signs
The two counts on this page connect through a simple fact: a designation is a design, not a sign. R1-1 is one line on FHWA's list. North Carolina's transportation department alone had 51,000 Stop signs on its system when it studied the reflectivity rule, according to the same FHWA report. Multiply that across 50 states, then add every county road, city street, and private road open to the public, and one designation becomes millions of physical signs.
The same design also appears in many forms that the list does not count separately. R2-1 is one designation for every Speed Limit sign, whatever the number on it. D3-1 is one designation for every street name in the country. Each design also comes in several sizes, and warning signs come in left and right versions. That is why a manufacturer's catalog, a city's inventory, and FHWA's list will never agree. Each is counting a different unit.
How Many Stop Signs Are There in the U.S.?
No agency publishes a national Stop sign count, but the North Carolina figure gives the scale. The state had 51,000 Stop signs on the roads it maintained in 2000, in a state with roughly 78,000 miles of road, which is about two Stop signs for every three miles. Applied to the country's 4.2 million miles, that ratio gives roughly 2.7 million Stop signs. Treat it as a rough scaling rather than a count. Most of North Carolina's system is rural highway, and city grids carry far more Stop signs per mile, so the true national figure is probably higher. For comparison, FHWA's planning figure of 3 million intersections, of which about 10% are signalized, leaves 2.7 million unsignalized intersections, and most of those are controlled by at least one Stop or Yield sign.
How Many Road Signs Are Made Each Year?
Sign shops give a different view of the total, because every installed sign eventually gets replaced. A few agencies publish their output.
| Agency sign shop | Signs made per year | What it covers |
|---|---|---|
| New York City DOT | Over 70,000 | City streets, against an inventory of over one million signs |
| Texas DOT, Athens shop | Around 23,000 plus 40,000 decals | About half of what the Texas state highway system needs in a year |
| Texas DOT, Lubbock shop | Approximately 17,000 | Same source, second regional shop |
| Arizona DOT | Nearly 35,000 | State highways, rest areas, and motor vehicle offices, in one fiscal year |
Swipe sideways on a phone to see the full table.
New York City's two figures are the useful pair. Making 70,000 signs a year for an inventory of one million means the city replaces about 7% of its signs annually, a cycle of roughly 14 years per sign. That matches the 10 to 15 year service life of modern reflective sheeting. Scaled to a national inventory of 50 million to 160 million signs, the same replacement rate implies somewhere between 3.5 million and 11 million new signs a year. Agency shops make only a fraction of those. Most cities, counties, contractors, and property owners buy from sign suppliers like us.
Which MUTCD Signs Does RoadSigns.com Offer?
RoadSigns.com offers 182 of the 1,059 designations on FHWA's current list, spread across more than 500 products and about 4,100 size and sheeting combinations. Our range is weighted toward the signs agencies, contractors, and property owners buy most: 76 regulatory designations, 59 warning designations, 28 temporary traffic control designations, and a smaller number of guide and school signs. You can use our road sign size calculator to compare sizes by sign code and road type. We offer most standard sizes, and every sign is made in the USA on .080 inch aluminum with high-intensity or diamond-grade prismatic sheeting, so it matches the FHWA design and meets the MUTCD reflectivity rule described above.
If you know the designation, search for it directly. If you know only the message, start with the regulatory signs, road warning signs, construction signs, guide signs, or school signs categories, or contact our team and we will match your message to the correct MUTCD design and size.
Methodology
RoadSigns.com compiled the figures on this page on September 20 and 21, 2026 from government sources only. We did not use manufacturer estimates or other websites' figures.
Installed signs. The "about 40 million" figure is not ours; we describe the arithmetic behind it (road miles times 10 signs per mile) so readers can judge it. Signs per mile for New York City divide the "over one million street signs" and "6,300 miles of streets and highways" figures on NYC DOT's about page. Missouri divides MoDOT's "almost 700,000 signs" by the 30,653 miles of State Highway Agency road in FHWA's Highway Statistics 2024, Table HM-10. North Carolina divides the "over three million signs" and "78,000+ miles" figures from the 2000 North Carolina State University study as reported in FHWA-HRT-07-042. National scaling multiplies each density by 4,208,454 miles of public road from FHWA's Table HM-20 for 2024, which excludes Puerto Rico.
FHWA model total. Tables 7 and 8 of FHWA-HRT-07-042 list 460,000 state and 2,030,000 local regulatory, warning, and post-mounted guide signs requiring upgrade. Section 4.2 of the same report states that about 5% of state signs and 8% of local signs would not meet the minimum levels. Dividing gives 9,200,000 and 25,375,000 signs. Table 9 gives 2,400,000 and 16,200,000 street name signs and Table 10 gives 280,000 overhead guide signs. The sum is 53,455,000. The report's own sign densities come from a small 1990s sample, and the failure rates are rounded, so we present this as an implied figure, not a federal count.
MUTCD designations. We counted every designation label in the five sign tables (regulatory, warning and object markers, guide, temporary traffic control, and school) on FHWA's Standard Highway Signs release-status page for the 11th Edition. We excluded column headings, the miscellaneous arrow details, and the discontinued list. The tables contain 1,060 rows; one label, R10-20aP, appears twice with different descriptions, giving 1,059 unique labels. Plaques are labels ending in P (208). Object markers are the OM series (13). "New Sign" counts use FHWA's own notes column. The count does not expand designations into sizes, speed values, street names, or left and right versions, and it does not include state-specific signs.
Stop signs and annual production. The Stop sign scaling divides North Carolina's 51,000 Stop signs (FHWA-HRT-07-042, section 4.3.3) by the state's roughly 78,000 road miles and multiplies by 4,208,454 national miles. The New York City replacement rate divides 70,000 signs a year by the one million signs the city maintains, both from NYC DOT pages. The national production range applies that 7% rate to the 50 million to 160 million installed-sign range. Sign shop outputs are quoted from each agency's own page; the Arizona post does not show a publication date.
RoadSigns.com range. Product counts come from our published catalog on September 20, 2026, matched to FHWA's list by designation after removing left and right suffixes.
