FORTISVEX Illinois State Flag 4x6 Feet Nylon - Made in USA with Brass Grommets

The 4x6 foot flag is where a house bracket stops being enough. It needs an in-ground flagpole, and that is the real reason people move up to it — not appearance, just size.

This is the Illinois state flag at 4x6 Feet (24 square feet) in nylon, made in the United States and finished with brass grommets.

Built to the Illinois flag specification

The Illinois flag is set out in the Illinois State Designations Act at 5 ILCS 460. It is the state seal, showing an eagle, a shield and a boulder carrying the dates 1818 and 1868, on a white field, with the word Illinois added below in 1970.

The word Illinois was added in 1970.

The design, the colors and the seal or emblem are set by statute; the size of a modern outdoor flag is not. That is the case in most of the country, and it is why manufacturers across the industry all build to the same standard sizes.

What we build is a faithful reproduction of that design, sized to the standard outdoor sizes every manufacturer uses and the states themselves order in. On an outdoor flag, the colors, the seal and the emblems are what has to be right, and here they are.

The law that defines it, in its own words

5 ILCS 460/5 reads:

(a) The reproduction of the emblem only on the "great seal of the State of Illinois" is authorized and permitted when reproduced in black or in the national colors upon a white sheet or background and bearing underneath the emblem in blue letters the word "Illinois" and being an actual reproduction of the great seal, except for the outer ring, for use as a State banner or insignia under the conditions and subject to the restrictions provided by the laws of the United States and the State of Illinois as to the United States or State flag or ensign.

Confirmed unchanged. The 2024 to 2025 Flag Commission vote favored the existing design and no new statute followed.

You do not have to take our word for any of that. Read 5 ILCS 460/5 in full at Justia, and check what we sell against it.

That is the flag as we build it. Nothing about it is approximate.

What is on it and what it means

The boulder carries the dates 1818 and 1868, marking statehood and the seal redesign.

What most listings get wrong

An Illinois Flag Commission created by Public Act 103-0513 ran a public vote in 2024 and 2025. When the results were announced on March 6, 2025 the existing flag won overwhelmingly. No new flag was adopted, so anyone telling you Illinois has a new flag is wrong.

Where the Illinois flag flies

Each holds a significant Civil War battle flag collection. Connecticut's is at the Museum of Connecticut History in Hartford. Illinois has the State Military Museum in Springfield. Massachusetts has the State House Hall of Flags. Michigan runs a Save the Flags program with rotating display at the Capitol. Minnesota's Historical Society holds the First Minnesota's colors associated with Gettysburg.

The notable tall pole is Sterling Bay's two hundred foot flagpole in Chicago's Fulton Market, but the record cited for it concerns a thirty by sixty foot Ukrainian flag rather than a United States flag.

Fly it on Illinois’s birthday

Illinois became the 21st state on December 3, 1818. Under the United States Flag Code as amended July 7, 1976, a state flag flown on the state’s birthday takes its place beneath the United States flag, and that day is the one date every year the Illinois flag has an official reason to go up.

Order it ahead of the date and it is ready to fly that day. Every state’s birthday is listed on our state birthdays page.

Nylon or polyester in Illinois

Nylon in most of the state. Polyester along the Lake Michigan lakefront at Chicago for lake driven wind, and in the open central and southern plains for storm wind.

Wind load becomes a real factor at twenty four square feet, and the verdict above matters more at this size than it does for a 3x5 Feet house flag.

What you have here is the nylon, appropriate for the sheltered and moderate wind sites listed above, for any house bracket, and for anywhere the flag is brought down during storms. Two things decide it: it is light, flying on an ordinary breeze rather than going limp, and it dries fast, which is the defense against mildew in humidity. The trade is ultraviolet durability — nylon’s amide bonds break under sun, fading and weakening faster than polyester, and it loses about a tenth of its strength wet. For an exposed site on the list above, the polyester version is worth a look instead.

Here is the part usually learned the hard way, after a second purchase: nylon catches wind on days polyester simply will not move. When the flag needs to be visibly flying — a quiet morning, a holiday, a funeral, a ceremony — that argues for nylon even on a site where polyester would technically last longer. A flag that just hangs there is not doing its job either.

The figure most institutions use is from the American Legion, citing the United States government's expectation of about ninety days for a flag flown daily from sunrise to sunset, and roughly a quarter of that around the clock. Retailers see three to six months in practice for nylon flown daily, four to eight for polyester, and one to three years when flown occasionally. These are practical figures, not a guarantee, and real-world exposure shifts them considerably.

How the 4x6 Feet is built

The extra area on a 4x6 foot flag — more than half again a 3x5 Feet's — means more wind caught and a harder-working fly end. Four rows of lock stitching, all four earning their place.

Work the numbers and you get 24 square feet of nylon at roughly two ounces a square yard. At thirty miles an hour, the fly end actually outpaces the wind, because the wave running to the tip accelerates along the way — the reason the tip fails first, and the reason fly-end stitching count is the number that matters.

A one person job, technically, but the first windy day taking it down alone will make the size difference clear. Bring it in ahead of weather, not during it.

A lock stitch ties into the stitch next to it, so one broken thread does not unzip the whole seam — it just stops. 4 rows is not 4 times the strength; it is 3 backups. The heading is reinforced heavy duty white, an inch and a half, with brass grommets and tooth washers taking a real load across twenty four square feet.

The material here is commercial grade nylon. Its lightness lets it fly on a gentle breeze, it sheds rather than absorbs water, and it dries quickly, sparing the seams the extra weight and strain of staying wet. Field tested UV resistant ink handles the part that actually determines fade life: sun exposure.

Why this flag is harder to make than most

A detailed seal on white plus lettering. White fields also show soiling faster than any other ground color, which matters on a flag that flies year round.

For what it is worth, the North American Vexillological Association surveyed 72 state, provincial and territorial flags in 2001 and rated them from zero to ten. The Illinois flag placed 49, at 4.38 out of 10.

Will it fit my flagpole?

It suits an in-ground flagpole of eighteen to twenty five feet. On a six foot house bracket it will drag and wrap.

Questions about the 4x6 Feet

What flagpole does a 4x6 foot flag need? An in-ground flagpole of eighteen to twenty five feet. It is too large for a standard house bracket, which is the honest reason to choose it.

Is a 4x6 foot flag worth it over a 3x5 foot flag? Only if the flagpole is tall enough. On a twenty foot flagpole a 3x5 foot flag looks lost and a 4x6 foot flag fills it. On a six foot bracket the 4x6 foot flag will wrap.

Can I fly a 4x6 foot state flag with a 4x6 foot United States flag? Yes, and on two flagpoles of equal height that is the correct pairing, with the United States flag to the viewer’s left.

Where the step up starts to cost you

Going from a 3x5 foot flag to a 4x6 foot flag is where buying cheap begins to be expensive. The extra area means more force at the fly end and more load on the grommets, so a 4x6 Feet built to a budget fails faster than a 3x5 Feet built the same way. This is the size where construction stops being a nicety.

Specifications

• Size: 4x6 Feet
• Area: 24 square feet
• Material: 100 percent nylon
• Fly end: 4 rows of lock stitching
• Heading: heavy duty white, reinforced, 1-1/2 inch
• Finish: Brass Grommets
• Ink: UV resistant, field tested
• Made in the United States by FORTISVEX

Which size do I need?

Both tables follow the same logic. A flagpole reads best with a flag whose length falls between a quarter and a third of its height. Where a size could go either way, smaller means more flying days and a longer life, bigger means more visibility at range.

If you know your flagpole height, start here.

• 6 Feet house bracket: 2x3 Feet or 3x5 Feet
• 15 to 20 Feet flagpole: 3x5 Feet or 4x6 Feet
• 20 to 25 Feet flagpole: 4x6 Feet or 5x8 Feet
• 25 to 35 Feet flagpole: 5x8 Feet or 6x10 Feet
• 35 to 45 Feet flagpole: 6x10 Feet or 8x12 Feet
• 45 to 60 Feet flagpole: 8x12 Feet or 10x15 Feet
• 60 to 80 Feet flagpole: 10x15 Feet or 12x18 Feet
• 80 to 100 Feet flagpole: 12x18 Feet or 15x25 Feet
• 100 to 120 Feet flagpole: 15x25 Feet or 20x30 Feet
• 120 to 150 Feet flagpole: 20x30 Feet or 20x38 Feet
• 150 to 200 Feet flagpole: 20x38 Feet or 30x50 Feet
• 200 to 240 Feet flagpole: 30x50 Feet or 30x60 Feet
• 240 Feet and above: 30x60 Feet or 50x80 Feet, engineered to the flagpole

If you know your flag size, start here.

• 2x3 Feet: 4 to 8 Feet bracket or garden flagpole
• 3x5 Feet: 6 Feet bracket, or 15 to 20 Feet in-ground flagpole
• 4x6 Feet: 18 to 25 Feet in-ground flagpole
• 5x8 Feet: 25 to 35 Feet flagpole
• 6x10 Feet: 30 to 40 Feet flagpole
• 8x12 Feet: 40 to 50 Feet flagpole
• 10x15 Feet: 50 to 60 Feet flagpole
• 12x18 Feet: 60 to 80 Feet flagpole
• 15x25 Feet: 80 to 100 Feet flagpole
• 20x30 Feet: 100 to 120 Feet flagpole
• 20x38 Feet: 120 to 150 Feet flagpole. This is the garrison size under Executive Order 10834, at a one to one point nine ratio rather than the two to three of the commercial sizes, and it is the size flown at the White House and the Capitol
• 30x50 Feet: 150 to 200 Feet flagpole
• 30x60 Feet: 200 to 240 Feet flagpole. This is the largest standard commercial size
• 50x80 Feet: 240 Feet and above, engineered to the flagpole

The rule keeps holding above a hundred feet of flagpole, but the buying decision does not stay simple: the flag, the truck, the halyard, the foundation and the wind load now have to be specified as one engineered system, and a flag chosen without checking the flagpole rating puts the pole at risk before the flag. Some of the most recognizable flags in the country deliberately run larger than the rule, always with an engineer behind that call.

The full range is available to order even where a size is not shown on the site. If what you need is not listed here, ask and we can still get it made.

About the back of the flag

The reverse of a printed flag mirrors the front, which is ordinary and true of nearly every flag in the country. To have both faces read correctly requires a double sided construction: two flags joined with a liner in between, at about twice the material and twice the price. Single sided is the industry standard, and the sensible pick unless a state’s statute says otherwise.

Flying it with the United States flag

Title 4, Section 7 of the United States Flag Code sets the rule: no flag flies above the United States flag, and none takes its place to the right at the same level, meaning the viewer’s left. Two equal-height flagpoles put the United States flag on the viewer’s left, with both flags matched in size. Unequal flagpoles put the United States flag on the taller one, and a single flagpole with two flags carries the United States flag at the top. Civilians are not bound by penalty under the Flag Code, but it remains the standard institutions follow.

Buy two and they both last longer

The simplest way to make a flag last is to own two and rotate them monthly — that alone outlasts three flags flown to failure, because rest lets the fabric recover and the fly end is not hammered day after day. Take it down ahead of real storms, since one bad night of wind can undo six good months. Watch the fly end, where fraying starts, and a quick repair there is worth a whole extra season.

For cities, counties, schools and agencies

State flags go out to municipalities, school districts, fire and police departments, courthouses and state agencies as a matter of course. Tax exempt purchasing runs through the tax exempt page, and anything involving quantity, a replacement schedule or a size we do not list goes through the contact page.

Why buy it from us

We are a small company based in America, and we keep in stock what we sell. Every flag is made domestically, printed in UV resistant ink, and finished to the construction described above rather than scaled down to a price. Selling a flag that lasts matters more to us than selling three that don’t. Orders over twenty five dollars ship free.